Home / 99,796,908.78-137,668,148.91-63,148,737.42

Finding the Fourth Proportional to 99,796,908.78, 137,668,148.91 and 63,148,737.42

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Solution

The fourth proportional to 99,796,908.78, 137,668,148.91 and 63,148,737.42 is: 87,112,615.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,796,908.78 : 137,668,148.91 = 63,148,737.42 : x
  2. Step 2: Convert to fraction form
    99,796,908.78/137,668,148.91 = 63,148,737.42/x
  3. Step 3: Cross multiply
    99,796,908.78x = 137,668,148.91 × 63,148,737.42
  4. Step 4: Simplify right side
    99,796,908.78x = 8,693,569,786,615,049
  5. Step 5: Solve for x
    x = 8,693,569,786,615,049/99,796,908.78
  6. Step 6: Final answer
    x = 87,112,615.94

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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.