Home / 115,698,621.90-159,663,660.22-63,488,531.28

Finding the Fourth Proportional to 115,698,621.90, 159,663,660.22 and 63,488,531.28

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Solution

The fourth proportional to 115,698,621.90, 159,663,660.22 and 63,488,531.28 is: 87,613,932.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,698,621.90 : 159,663,660.22 = 63,488,531.28 : x
  2. Step 2: Convert to fraction form
    115,698,621.90/159,663,660.22 = 63,488,531.28/x
  3. Step 3: Cross multiply
    115,698,621.90x = 159,663,660.22 × 63,488,531.28
  4. Step 4: Simplify right side
    115,698,621.90x = 10,136,811,286,156,762
  5. Step 5: Solve for x
    x = 10,136,811,286,156,762/115,698,621.90
  6. Step 6: Final answer
    x = 87,613,932.82

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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.