Home / 839,810,998.80-1,259,716,498.20-533,449,040.40

Finding the Fourth Proportional to 839,810,998.80, 1,259,716,498.20 and 533,449,040.40

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Solution

The fourth proportional to 839,810,998.80, 1,259,716,498.20 and 533,449,040.40 is: 800,173,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,998.80 : 1,259,716,498.20 = 533,449,040.40 : x
  2. Step 2: Convert to fraction form
    839,810,998.80/1,259,716,498.20 = 533,449,040.40/x
  3. Step 3: Cross multiply
    839,810,998.80x = 1,259,716,498.20 × 533,449,040.40
  4. Step 4: Simplify right side
    839,810,998.80x = 671,994,557,140,838,272
  5. Step 5: Solve for x
    x = 671,994,557,140,838,272/839,810,998.80
  6. Step 6: Final answer
    x = 800,173,560.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.