Home / 57,135,281.38-78,847,151.25-31,029,985.91

Finding the Fourth Proportional to 57,135,281.38, 78,847,151.25 and 31,029,985.91

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Solution

The fourth proportional to 57,135,281.38, 78,847,151.25 and 31,029,985.91 is: 42,821,631.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,135,281.38 : 78,847,151.25 = 31,029,985.91 : x
  2. Step 2: Convert to fraction form
    57,135,281.38/78,847,151.25 = 31,029,985.91/x
  3. Step 3: Cross multiply
    57,135,281.38x = 78,847,151.25 × 31,029,985.91
  4. Step 4: Simplify right side
    57,135,281.38x = 2,446,625,992,644,619
  5. Step 5: Solve for x
    x = 2,446,625,992,644,619/57,135,281.38
  6. Step 6: Final answer
    x = 42,821,631.99

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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.