Home / 18,189,425.57-25,037,694.69-15,862,212.21

Finding the Fourth Proportional to 18,189,425.57, 25,037,694.69 and 15,862,212.21

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Solution

The fourth proportional to 18,189,425.57, 25,037,694.69 and 15,862,212.21 is: 21,834,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189,425.57 : 25,037,694.69 = 15,862,212.21 : x
  2. Step 2: Convert to fraction form
    18,189,425.57/25,037,694.69 = 15,862,212.21/x
  3. Step 3: Cross multiply
    18,189,425.57x = 25,037,694.69 × 15,862,212.21
  4. Step 4: Simplify right side
    18,189,425.57x = 397,153,226,421,970.19
  5. Step 5: Solve for x
    x = 397,153,226,421,970.19/18,189,425.57
  6. Step 6: Final answer
    x = 21,834,291.85

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Double scale
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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.