Home / 22,625,325.12-31,223,605.68-12,312,713.28

Finding the Fourth Proportional to 22,625,325.12, 31,223,605.68 and 12,312,713.28

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Solution

The fourth proportional to 22,625,325.12, 31,223,605.68 and 12,312,713.28 is: 16,991,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,625,325.12 : 31,223,605.68 = 12,312,713.28 : x
  2. Step 2: Convert to fraction form
    22,625,325.12/31,223,605.68 = 12,312,713.28/x
  3. Step 3: Cross multiply
    22,625,325.12x = 31,223,605.68 × 12,312,713.28
  4. Step 4: Simplify right side
    22,625,325.12x = 384,447,304,305,619.38
  5. Step 5: Solve for x
    x = 384,447,304,305,619.38/22,625,325.12
  6. Step 6: Final answer
    x = 16,991,901.87

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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.