Home / 10,790,639.60-16,185,959.40-8,381,440.40

Finding the Fourth Proportional to 10,790,639.60, 16,185,959.40 and 8,381,440.40

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Solution

The fourth proportional to 10,790,639.60, 16,185,959.40 and 8,381,440.40 is: 12,572,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790,639.60 : 16,185,959.40 = 8,381,440.40 : x
  2. Step 2: Convert to fraction form
    10,790,639.60/16,185,959.40 = 8,381,440.40/x
  3. Step 3: Cross multiply
    10,790,639.60x = 16,185,959.40 × 8,381,440.40
  4. Step 4: Simplify right side
    10,790,639.60x = 135,661,654,027,919.77
  5. Step 5: Solve for x
    x = 135,661,654,027,919.77/10,790,639.60
  6. Step 6: Final answer
    x = 12,572,160.60

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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.