Home / 18,801,127.40-28,201,691.10-12,409,884.80

Finding the Fourth Proportional to 18,801,127.40, 28,201,691.10 and 12,409,884.80

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Solution

The fourth proportional to 18,801,127.40, 28,201,691.10 and 12,409,884.80 is: 18,614,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801,127.40 : 28,201,691.10 = 12,409,884.80 : x
  2. Step 2: Convert to fraction form
    18,801,127.40/28,201,691.10 = 12,409,884.80/x
  3. Step 3: Cross multiply
    18,801,127.40x = 28,201,691.10 × 12,409,884.80
  4. Step 4: Simplify right side
    18,801,127.40x = 349,979,737,716,185.31
  5. Step 5: Solve for x
    x = 349,979,737,716,185.31/18,801,127.40
  6. Step 6: Final answer
    x = 18,614,827.20

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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.