Home / 239,855,398.86-331,000,561.17-129,847,111.86

Finding the Fourth Proportional to 239,855,398.86, 331,000,561.17 and 129,847,111.86

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Solution

The fourth proportional to 239,855,398.86, 331,000,561.17 and 129,847,111.86 is: 179,189,074.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,855,398.86 : 331,000,561.17 = 129,847,111.86 : x
  2. Step 2: Convert to fraction form
    239,855,398.86/331,000,561.17 = 129,847,111.86/x
  3. Step 3: Cross multiply
    239,855,398.86x = 331,000,561.17 × 129,847,111.86
  4. Step 4: Simplify right side
    239,855,398.86x = 42,979,466,891,963,768
  5. Step 5: Solve for x
    x = 42,979,466,891,963,768/239,855,398.86
  6. Step 6: Final answer
    x = 179,189,074.32

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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.