Home / 1,333,138,278.75-1,839,749,817.56-768,611,992.83

Finding the Fourth Proportional to 1,333,138,278.75, 1,839,749,817.56 and 768,611,992.83

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Solution

The fourth proportional to 1,333,138,278.75, 1,839,749,817.56 and 768,611,992.83 is: 1,060,695,500.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,138,278.75 : 1,839,749,817.56 = 768,611,992.83 : x
  2. Step 2: Convert to fraction form
    1,333,138,278.75/1,839,749,817.56 = 768,611,992.83/x
  3. Step 3: Cross multiply
    1,333,138,278.75x = 1,839,749,817.56 × 768,611,992.83
  4. Step 4: Simplify right side
    1,333,138,278.75x = 1,414,053,773,579,577,600
  5. Step 5: Solve for x
    x = 1,414,053,773,579,577,600/1,333,138,278.75
  6. Step 6: Final answer
    x = 1,060,695,500.32

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Half scale
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Double scale
Find fourth proportional to 1,333,138,279.75, 1,839,749,818.94 and 768,611,993.83
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.