Home / 78,144,305.02-117,227,236.52-45,370,308.71

Finding the Fourth Proportional to 78,144,305.02, 117,227,236.52 and 45,370,308.71

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Solution

The fourth proportional to 78,144,305.02, 117,227,236.52 and 45,370,308.71 is: 68,061,721.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,144,305.02 : 117,227,236.52 = 45,370,308.71 : x
  2. Step 2: Convert to fraction form
    78,144,305.02/117,227,236.52 = 45,370,308.71/x
  3. Step 3: Cross multiply
    78,144,305.02x = 117,227,236.52 × 45,370,308.71
  4. Step 4: Simplify right side
    78,144,305.02x = 5,318,635,910,132,586
  5. Step 5: Solve for x
    x = 5,318,635,910,132,586/78,144,305.02
  6. Step 6: Final answer
    x = 68,061,721.31

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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.