Home / 13,878,004.20-20,817,006.30-12,508,067.40

Finding the Fourth Proportional to 13,878,004.20, 20,817,006.30 and 12,508,067.40

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Solution

The fourth proportional to 13,878,004.20, 20,817,006.30 and 12,508,067.40 is: 18,762,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878,004.20 : 20,817,006.30 = 12,508,067.40 : x
  2. Step 2: Convert to fraction form
    13,878,004.20/20,817,006.30 = 12,508,067.40/x
  3. Step 3: Cross multiply
    13,878,004.20x = 20,817,006.30 × 12,508,067.40
  4. Step 4: Simplify right side
    13,878,004.20x = 260,380,517,866,624.62
  5. Step 5: Solve for x
    x = 260,380,517,866,624.62/13,878,004.20
  6. Step 6: Final answer
    x = 18,762,101.10

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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.