Home / 12,057,421.40-18,086,132.10-9,789,939.80

Finding the Fourth Proportional to 12,057,421.40, 18,086,132.10 and 9,789,939.80

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Solution

The fourth proportional to 12,057,421.40, 18,086,132.10 and 9,789,939.80 is: 14,684,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,057,421.40 : 18,086,132.10 = 9,789,939.80 : x
  2. Step 2: Convert to fraction form
    12,057,421.40/18,086,132.10 = 9,789,939.80/x
  3. Step 3: Cross multiply
    12,057,421.40x = 18,086,132.10 × 9,789,939.80
  4. Step 4: Simplify right side
    12,057,421.40x = 177,062,144,473,847.59
  5. Step 5: Solve for x
    x = 177,062,144,473,847.59/12,057,421.40
  6. Step 6: Final answer
    x = 14,684,909.70

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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.