Home / 11,145,419.10-16,718,128.65-8,106,363.90

Finding the Fourth Proportional to 11,145,419.10, 16,718,128.65 and 8,106,363.90

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Solution

The fourth proportional to 11,145,419.10, 16,718,128.65 and 8,106,363.90 is: 12,159,545.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145,419.10 : 16,718,128.65 = 8,106,363.90 : x
  2. Step 2: Convert to fraction form
    11,145,419.10/16,718,128.65 = 8,106,363.90/x
  3. Step 3: Cross multiply
    11,145,419.10x = 16,718,128.65 × 8,106,363.90
  4. Step 4: Simplify right side
    11,145,419.10x = 135,523,234,563,915.75
  5. Step 5: Solve for x
    x = 135,523,234,563,915.75/11,145,419.10
  6. Step 6: Final answer
    x = 12,159,545.85

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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.