Home / 56,271,163.38-77,652,537.12-31,154,391.71

Finding the Fourth Proportional to 56,271,163.38, 77,652,537.12 and 31,154,391.71

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Solution

The fourth proportional to 56,271,163.38, 77,652,537.12 and 31,154,391.71 is: 42,992,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,271,163.38 : 77,652,537.12 = 31,154,391.71 : x
  2. Step 2: Convert to fraction form
    56,271,163.38/77,652,537.12 = 31,154,391.71/x
  3. Step 3: Cross multiply
    56,271,163.38x = 77,652,537.12 × 31,154,391.71
  4. Step 4: Simplify right side
    56,271,163.38x = 2,419,217,558,593,218.50
  5. Step 5: Solve for x
    x = 2,419,217,558,593,218.50/56,271,163.38
  6. Step 6: Final answer
    x = 42,992,136.88

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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.