Home / 10,286,445.15-15,428,585.16-4,221,817.61

Finding the Fourth Proportional to 10,286,445.15, 15,428,585.16 and 4,221,817.61

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Solution

The fourth proportional to 10,286,445.15, 15,428,585.16 and 4,221,817.61 is: 6,332,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286,445.15 : 15,428,585.16 = 4,221,817.61 : x
  2. Step 2: Convert to fraction form
    10,286,445.15/15,428,585.16 = 4,221,817.61/x
  3. Step 3: Cross multiply
    10,286,445.15x = 15,428,585.16 × 4,221,817.61
  4. Step 4: Simplify right side
    10,286,445.15x = 65,136,672,448,729.75
  5. Step 5: Solve for x
    x = 65,136,672,448,729.75/10,286,445.15
  6. Step 6: Final answer
    x = 6,332,282.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.