Home / 78,732,054.70-118,098,082.05-21,222,265.30

Finding the Fourth Proportional to 78,732,054.70, 118,098,082.05 and 21,222,265.30

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Solution

The fourth proportional to 78,732,054.70, 118,098,082.05 and 21,222,265.30 is: 31,833,397.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,054.70 : 118,098,082.05 = 21,222,265.30 : x
  2. Step 2: Convert to fraction form
    78,732,054.70/118,098,082.05 = 21,222,265.30/x
  3. Step 3: Cross multiply
    78,732,054.70x = 118,098,082.05 × 21,222,265.30
  4. Step 4: Simplify right side
    78,732,054.70x = 2,506,308,828,686,268
  5. Step 5: Solve for x
    x = 2,506,308,828,686,268/78,732,054.70
  6. Step 6: Final answer
    x = 31,833,397.95

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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.