Home / 1,276,281,976.82-1,761,265,588.31-711,767,390.43

Finding the Fourth Proportional to 1,276,281,976.82, 1,761,265,588.31 and 711,767,390.43

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Solution

The fourth proportional to 1,276,281,976.82, 1,761,265,588.31 and 711,767,390.43 is: 982,237,024.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,281,976.82 : 1,761,265,588.31 = 711,767,390.43 : x
  2. Step 2: Convert to fraction form
    1,276,281,976.82/1,761,265,588.31 = 711,767,390.43/x
  3. Step 3: Cross multiply
    1,276,281,976.82x = 1,761,265,588.31 × 711,767,390.43
  4. Step 4: Simplify right side
    1,276,281,976.82x = 1,253,611,411,651,247,104
  5. Step 5: Solve for x
    x = 1,253,611,411,651,247,104/1,276,281,976.82
  6. Step 6: Final answer
    x = 982,237,024.75

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Double scale
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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.