Home / 87,573,846.80-131,136,821.40-64,731,069.20

Finding the Fourth Proportional to 87,573,846.80, 131,136,821.40 and 64,731,069.20

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Solution

The fourth proportional to 87,573,846.80, 131,136,821.40 and 64,731,069.20 is: 96,931,069.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,573,846.80 : 131,136,821.40 = 64,731,069.20 : x
  2. Step 2: Convert to fraction form
    87,573,846.80/131,136,821.40 = 64,731,069.20/x
  3. Step 3: Cross multiply
    87,573,846.80x = 131,136,821.40 × 64,731,069.20
  4. Step 4: Simplify right side
    87,573,846.80x = 8,488,626,660,711,442
  5. Step 5: Solve for x
    x = 8,488,626,660,711,442/87,573,846.80
  6. Step 6: Final answer
    x = 96,931,069.84

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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.