Home / 30,891,549.12-42,479,167.68-26,810,082.24

Finding the Fourth Proportional to 30,891,549.12, 42,479,167.68 and 26,810,082.24

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Solution

The fourth proportional to 30,891,549.12, 42,479,167.68 and 26,810,082.24 is: 36,866,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891,549.12 : 42,479,167.68 = 26,810,082.24 : x
  2. Step 2: Convert to fraction form
    30,891,549.12/42,479,167.68 = 26,810,082.24/x
  3. Step 3: Cross multiply
    30,891,549.12x = 42,479,167.68 × 26,810,082.24
  4. Step 4: Simplify right side
    30,891,549.12x = 1,138,869,978,987,550
  5. Step 5: Solve for x
    x = 1,138,869,978,987,550/30,891,549.12
  6. Step 6: Final answer
    x = 36,866,716.35

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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.