Home / 20,156,597.10-30,234,895.65-11,972,405.70

Finding the Fourth Proportional to 20,156,597.10, 30,234,895.65 and 11,972,405.70

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Solution

The fourth proportional to 20,156,597.10, 30,234,895.65 and 11,972,405.70 is: 17,958,608.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156,597.10 : 30,234,895.65 = 11,972,405.70 : x
  2. Step 2: Convert to fraction form
    20,156,597.10/30,234,895.65 = 11,972,405.70/x
  3. Step 3: Cross multiply
    20,156,597.10x = 30,234,895.65 × 11,972,405.70
  4. Step 4: Simplify right side
    20,156,597.10x = 361,984,437,018,965.19
  5. Step 5: Solve for x
    x = 361,984,437,018,965.19/20,156,597.10
  6. Step 6: Final answer
    x = 17,958,608.55

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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.