Home / 12,128,511.40-18,180,519.90-6,053,900.20

Finding the Fourth Proportional to 12,128,511.40, 18,180,519.90 and 6,053,900.20

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Solution

The fourth proportional to 12,128,511.40, 18,180,519.90 and 6,053,900.20 is: 9,074,737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,511.40 : 18,180,519.90 = 6,053,900.20 : x
  2. Step 2: Convert to fraction form
    12,128,511.40/18,180,519.90 = 6,053,900.20/x
  3. Step 3: Cross multiply
    12,128,511.40x = 18,180,519.90 × 6,053,900.20
  4. Step 4: Simplify right side
    12,128,511.40x = 110,063,053,058,713.97
  5. Step 5: Solve for x
    x = 110,063,053,058,713.97/12,128,511.40
  6. Step 6: Final answer
    x = 9,074,737.16

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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.