Home / 765,560,720.79-1,148,429,889.99-267,416,990.87

Finding the Fourth Proportional to 765,560,720.79, 1,148,429,889.99 and 267,416,990.87

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Solution

The fourth proportional to 765,560,720.79, 1,148,429,889.99 and 267,416,990.87 is: 401,156,507.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,560,720.79 : 1,148,429,889.99 = 267,416,990.87 : x
  2. Step 2: Convert to fraction form
    765,560,720.79/1,148,429,889.99 = 267,416,990.87/x
  3. Step 3: Cross multiply
    765,560,720.79x = 1,148,429,889.99 × 267,416,990.87
  4. Step 4: Simplify right side
    765,560,720.79x = 307,109,665,400,548,800
  5. Step 5: Solve for x
    x = 307,109,665,400,548,800/765,560,720.79
  6. Step 6: Final answer
    x = 401,156,507.98

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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.