Home / 18,420,711.12-25,420,605.84-10,160,588.16

Finding the Fourth Proportional to 18,420,711.12, 25,420,605.84 and 10,160,588.16

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Solution

The fourth proportional to 18,420,711.12, 25,420,605.84 and 10,160,588.16 is: 14,021,625.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420,711.12 : 25,420,605.84 = 10,160,588.16 : x
  2. Step 2: Convert to fraction form
    18,420,711.12/25,420,605.84 = 10,160,588.16/x
  3. Step 3: Cross multiply
    18,420,711.12x = 25,420,605.84 × 10,160,588.16
  4. Step 4: Simplify right side
    18,420,711.12x = 258,288,306,717,930.84
  5. Step 5: Solve for x
    x = 258,288,306,717,930.84/18,420,711.12
  6. Step 6: Final answer
    x = 14,021,625.17

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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.