Home / 31,527,909.40-47,291,864.10-17,145,419.80

Finding the Fourth Proportional to 31,527,909.40, 47,291,864.10 and 17,145,419.80

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Solution

The fourth proportional to 31,527,909.40, 47,291,864.10 and 17,145,419.80 is: 25,718,129.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,527,909.40 : 47,291,864.10 = 17,145,419.80 : x
  2. Step 2: Convert to fraction form
    31,527,909.40/47,291,864.10 = 17,145,419.80/x
  3. Step 3: Cross multiply
    31,527,909.40x = 47,291,864.10 × 17,145,419.80
  4. Step 4: Simplify right side
    31,527,909.40x = 810,838,863,119,049.25
  5. Step 5: Solve for x
    x = 810,838,863,119,049.25/31,527,909.40
  6. Step 6: Final answer
    x = 25,718,129.70

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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.