Home / 124,666,420.38-172,036,359.99-69,662,728.86

Finding the Fourth Proportional to 124,666,420.38, 172,036,359.99 and 69,662,728.86

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Solution

The fourth proportional to 124,666,420.38, 172,036,359.99 and 69,662,728.86 is: 96,132,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,666,420.38 : 172,036,359.99 = 69,662,728.86 : x
  2. Step 2: Convert to fraction form
    124,666,420.38/172,036,359.99 = 69,662,728.86/x
  3. Step 3: Cross multiply
    124,666,420.38x = 172,036,359.99 × 69,662,728.86
  4. Step 4: Simplify right side
    124,666,420.38x = 11,984,522,300,044,722
  5. Step 5: Solve for x
    x = 11,984,522,300,044,722/124,666,420.38
  6. Step 6: Final answer
    x = 96,132,721.73

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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.