Home / 12,155,847.20-16,781,787.60-8,087,444

Finding the Fourth Proportional to 12,155,847.20, 16,781,787.60 and 8,087,444

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Solution

The fourth proportional to 12,155,847.20, 16,781,787.60 and 8,087,444 is: 11,165,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155,847.20 : 16,781,787.60 = 8,087,444 : x
  2. Step 2: Convert to fraction form
    12,155,847.20/16,781,787.60 = 8,087,444/x
  3. Step 3: Cross multiply
    12,155,847.20x = 16,781,787.60 × 8,087,444
  4. Step 4: Simplify right side
    12,155,847.20x = 135,721,767,434,894.41
  5. Step 5: Solve for x
    x = 135,721,767,434,894.41/12,155,847.20
  6. Step 6: Final answer
    x = 11,165,142.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.