Home / 10,790,639.10-16,185,958.65-8,381,439.90

Finding the Fourth Proportional to 10,790,639.10, 16,185,958.65 and 8,381,439.90

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Solution

The fourth proportional to 10,790,639.10, 16,185,958.65 and 8,381,439.90 is: 12,572,159.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790,639.10 : 16,185,958.65 = 8,381,439.90 : x
  2. Step 2: Convert to fraction form
    10,790,639.10/16,185,958.65 = 8,381,439.90/x
  3. Step 3: Cross multiply
    10,790,639.10x = 16,185,958.65 × 8,381,439.90
  4. Step 4: Simplify right side
    10,790,639.10x = 135,661,639,648,860.14
  5. Step 5: Solve for x
    x = 135,661,639,648,860.14/10,790,639.10
  6. Step 6: Final answer
    x = 12,572,159.85

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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.