Home / 87,361,409.70-131,042,114.55-86,227,668.90

Finding the Fourth Proportional to 87,361,409.70, 131,042,114.55 and 86,227,668.90

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Solution

The fourth proportional to 87,361,409.70, 131,042,114.55 and 86,227,668.90 is: 129,341,503.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,361,409.70 : 131,042,114.55 = 86,227,668.90 : x
  2. Step 2: Convert to fraction form
    87,361,409.70/131,042,114.55 = 86,227,668.90/x
  3. Step 3: Cross multiply
    87,361,409.70x = 131,042,114.55 × 86,227,668.90
  4. Step 4: Simplify right side
    87,361,409.70x = 11,299,456,065,373,274
  5. Step 5: Solve for x
    x = 11,299,456,065,373,274/87,361,409.70
  6. Step 6: Final answer
    x = 129,341,503.35

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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.