Home / 78,732,034.20-118,098,051.30-38,421,250.20

Finding the Fourth Proportional to 78,732,034.20, 118,098,051.30 and 38,421,250.20

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Solution

The fourth proportional to 78,732,034.20, 118,098,051.30 and 38,421,250.20 is: 57,631,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,034.20 : 118,098,051.30 = 38,421,250.20 : x
  2. Step 2: Convert to fraction form
    78,732,034.20/118,098,051.30 = 38,421,250.20/x
  3. Step 3: Cross multiply
    78,732,034.20x = 118,098,051.30 × 38,421,250.20
  4. Step 4: Simplify right side
    78,732,034.20x = 4,537,474,777,129,735
  5. Step 5: Solve for x
    x = 4,537,474,777,129,735/78,732,034.20
  6. Step 6: Final answer
    x = 57,631,875.30

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Double scale
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Similar ratio
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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.