Home / 87,573,811.80-131,136,768.90-64,731,034.20

Finding the Fourth Proportional to 87,573,811.80, 131,136,768.90 and 64,731,034.20

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Solution

The fourth proportional to 87,573,811.80, 131,136,768.90 and 64,731,034.20 is: 96,931,017.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,573,811.80 : 131,136,768.90 = 64,731,034.20 : x
  2. Step 2: Convert to fraction form
    87,573,811.80/131,136,768.90 = 64,731,034.20/x
  3. Step 3: Cross multiply
    87,573,811.80x = 131,136,768.90 × 64,731,034.20
  4. Step 4: Simplify right side
    87,573,811.80x = 8,488,618,672,543,397
  5. Step 5: Solve for x
    x = 8,488,618,672,543,397/87,573,811.80
  6. Step 6: Final answer
    x = 96,931,017.37

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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.