Home / 129,350,968.50-178,505,061.79-73,596,387.73

Finding the Fourth Proportional to 129,350,968.50, 178,505,061.79 and 73,596,387.73

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Solution

The fourth proportional to 129,350,968.50, 178,505,061.79 and 73,596,387.73 is: 101,563,427.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,350,968.50 : 178,505,061.79 = 73,596,387.73 : x
  2. Step 2: Convert to fraction form
    129,350,968.50/178,505,061.79 = 73,596,387.73/x
  3. Step 3: Cross multiply
    129,350,968.50x = 178,505,061.79 × 73,596,387.73
  4. Step 4: Simplify right side
    129,350,968.50x = 13,137,327,739,264,448
  5. Step 5: Solve for x
    x = 13,137,327,739,264,448/129,350,968.50
  6. Step 6: Final answer
    x = 101,563,427.72

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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.