Home / 429,454,856.62-644,134,044.12-118,606,663.78

Finding the Fourth Proportional to 429,454,856.62, 644,134,044.12 and 118,606,663.78

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Solution

The fourth proportional to 429,454,856.62, 644,134,044.12 and 118,606,663.78 is: 177,896,672.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,454,856.62 : 644,134,044.12 = 118,606,663.78 : x
  2. Step 2: Convert to fraction form
    429,454,856.62/644,134,044.12 = 118,606,663.78/x
  3. Step 3: Cross multiply
    429,454,856.62x = 644,134,044.12 × 118,606,663.78
  4. Step 4: Simplify right side
    429,454,856.62x = 76,398,590,000,192,528
  5. Step 5: Solve for x
    x = 76,398,590,000,192,528/429,454,856.62
  6. Step 6: Final answer
    x = 177,896,672.54

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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.