Home / 115,698,655.32-159,663,706.20-63,488,564.52

Finding the Fourth Proportional to 115,698,655.32, 159,663,706.20 and 63,488,564.52

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Solution

The fourth proportional to 115,698,655.32, 159,663,706.20 and 63,488,564.52 is: 87,613,978.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,698,655.32 : 159,663,706.20 = 63,488,564.52 : x
  2. Step 2: Convert to fraction form
    115,698,655.32/159,663,706.20 = 63,488,564.52/x
  3. Step 3: Cross multiply
    115,698,655.32x = 159,663,706.20 × 63,488,564.52
  4. Step 4: Simplify right side
    115,698,655.32x = 10,136,819,512,581,024
  5. Step 5: Solve for x
    x = 10,136,819,512,581,024/115,698,655.32
  6. Step 6: Final answer
    x = 87,613,978.61

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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.