Home / 11,121,857.55-16,672,267.53-8,385,158.70

Finding the Fourth Proportional to 11,121,857.55, 16,672,267.53 and 8,385,158.70

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Solution

The fourth proportional to 11,121,857.55, 16,672,267.53 and 8,385,158.70 is: 12,569,807.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121,857.55 : 16,672,267.53 = 8,385,158.70 : x
  2. Step 2: Convert to fraction form
    11,121,857.55/16,672,267.53 = 8,385,158.70/x
  3. Step 3: Cross multiply
    11,121,857.55x = 16,672,267.53 × 8,385,158.70
  4. Step 4: Simplify right side
    11,121,857.55x = 139,799,609,127,907.02
  5. Step 5: Solve for x
    x = 139,799,609,127,907.02/11,121,857.55
  6. Step 6: Final answer
    x = 12,569,807.56

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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.