Home / 78,732,111.70-118,098,167.55-75,862,330.30

Finding the Fourth Proportional to 78,732,111.70, 118,098,167.55 and 75,862,330.30

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Solution

The fourth proportional to 78,732,111.70, 118,098,167.55 and 75,862,330.30 is: 113,793,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,111.70 : 118,098,167.55 = 75,862,330.30 : x
  2. Step 2: Convert to fraction form
    78,732,111.70/118,098,167.55 = 75,862,330.30/x
  3. Step 3: Cross multiply
    78,732,111.70x = 118,098,167.55 × 75,862,330.30
  4. Step 4: Simplify right side
    78,732,111.70x = 8,959,202,194,502,841
  5. Step 5: Solve for x
    x = 8,959,202,194,502,841/78,732,111.70
  6. Step 6: Final answer
    x = 113,793,495.45

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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.