Home / 8,312,139.40-12,447,213.90-5,456,792.20

Finding the Fourth Proportional to 8,312,139.40, 12,447,213.90 and 5,456,792.20

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Solution

The fourth proportional to 8,312,139.40, 12,447,213.90 and 5,456,792.20 is: 8,171,405.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312,139.40 : 12,447,213.90 = 5,456,792.20 : x
  2. Step 2: Convert to fraction form
    8,312,139.40/12,447,213.90 = 5,456,792.20/x
  3. Step 3: Cross multiply
    8,312,139.40x = 12,447,213.90 × 5,456,792.20
  4. Step 4: Simplify right side
    8,312,139.40x = 67,921,859,721,251.59
  5. Step 5: Solve for x
    x = 67,921,859,721,251.59/8,312,139.40
  6. Step 6: Final answer
    x = 8,171,405.27

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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.