Home / 18,781,387.20-28,172,080.80-14,524,610.40

Finding the Fourth Proportional to 18,781,387.20, 28,172,080.80 and 14,524,610.40

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Solution

The fourth proportional to 18,781,387.20, 28,172,080.80 and 14,524,610.40 is: 21,786,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781,387.20 : 28,172,080.80 = 14,524,610.40 : x
  2. Step 2: Convert to fraction form
    18,781,387.20/28,172,080.80 = 14,524,610.40/x
  3. Step 3: Cross multiply
    18,781,387.20x = 28,172,080.80 × 14,524,610.40
  4. Step 4: Simplify right side
    18,781,387.20x = 409,188,497,777,320.31
  5. Step 5: Solve for x
    x = 409,188,497,777,320.31/18,781,387.20
  6. Step 6: Final answer
    x = 21,786,915.60

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1.5x scale

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.