Home / 716,135,301.45-987,904,968.17-418,583,146.05

Finding the Fourth Proportional to 716,135,301.45, 987,904,968.17 and 418,583,146.05

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Solution

The fourth proportional to 716,135,301.45, 987,904,968.17 and 418,583,146.05 is: 577,433,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,135,301.45 : 987,904,968.17 = 418,583,146.05 : x
  2. Step 2: Convert to fraction form
    716,135,301.45/987,904,968.17 = 418,583,146.05/x
  3. Step 3: Cross multiply
    716,135,301.45x = 987,904,968.17 × 418,583,146.05
  4. Step 4: Simplify right side
    716,135,301.45x = 413,520,369,572,930,816
  5. Step 5: Solve for x
    x = 413,520,369,572,930,816/716,135,301.45
  6. Step 6: Final answer
    x = 577,433,298.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.