Home / 71,218,096.20-106,827,144.30-66,440,521.80

Finding the Fourth Proportional to 71,218,096.20, 106,827,144.30 and 66,440,521.80

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Solution

The fourth proportional to 71,218,096.20, 106,827,144.30 and 66,440,521.80 is: 99,660,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,218,096.20 : 106,827,144.30 = 66,440,521.80 : x
  2. Step 2: Convert to fraction form
    71,218,096.20/106,827,144.30 = 66,440,521.80/x
  3. Step 3: Cross multiply
    71,218,096.20x = 106,827,144.30 × 66,440,521.80
  4. Step 4: Simplify right side
    71,218,096.20x = 7,097,651,209,695,895
  5. Step 5: Solve for x
    x = 7,097,651,209,695,895/71,218,096.20
  6. Step 6: Final answer
    x = 99,660,782.70

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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.