Home / 138,293,543.80-207,440,315.70-107,682,542.20

Finding the Fourth Proportional to 138,293,543.80, 207,440,315.70 and 107,682,542.20

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Solution

The fourth proportional to 138,293,543.80, 207,440,315.70 and 107,682,542.20 is: 161,523,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,293,543.80 : 207,440,315.70 = 107,682,542.20 : x
  2. Step 2: Convert to fraction form
    138,293,543.80/207,440,315.70 = 107,682,542.20/x
  3. Step 3: Cross multiply
    138,293,543.80x = 207,440,315.70 × 107,682,542.20
  4. Step 4: Simplify right side
    138,293,543.80x = 22,337,700,549,346,572
  5. Step 5: Solve for x
    x = 22,337,700,549,346,572/138,293,543.80
  6. Step 6: Final answer
    x = 161,523,813.30

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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.