Home / 13,780,207.70-20,670,311.55-9,670,397.30

Finding the Fourth Proportional to 13,780,207.70, 20,670,311.55 and 9,670,397.30

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Solution

The fourth proportional to 13,780,207.70, 20,670,311.55 and 9,670,397.30 is: 14,505,595.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780,207.70 : 20,670,311.55 = 9,670,397.30 : x
  2. Step 2: Convert to fraction form
    13,780,207.70/20,670,311.55 = 9,670,397.30/x
  3. Step 3: Cross multiply
    13,780,207.70x = 20,670,311.55 × 9,670,397.30
  4. Step 4: Simplify right side
    13,780,207.70x = 199,890,125,003,278.84
  5. Step 5: Solve for x
    x = 199,890,125,003,278.84/13,780,207.70
  6. Step 6: Final answer
    x = 14,505,595.95

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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.