Home / 498,609,872.76-687,724,695.90-349,964,148.36

Finding the Fourth Proportional to 498,609,872.76, 687,724,695.90 and 349,964,148.36

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Solution

The fourth proportional to 498,609,872.76, 687,724,695.90 and 349,964,148.36 is: 482,700,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,609,872.76 : 687,724,695.90 = 349,964,148.36 : x
  2. Step 2: Convert to fraction form
    498,609,872.76/687,724,695.90 = 349,964,148.36/x
  3. Step 3: Cross multiply
    498,609,872.76x = 687,724,695.90 × 349,964,148.36
  4. Step 4: Simplify right side
    498,609,872.76x = 240,678,987,506,783,488
  5. Step 5: Solve for x
    x = 240,678,987,506,783,488/498,609,872.76
  6. Step 6: Final answer
    x = 482,700,003.86

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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.