Home / 13,609,861.26-18,781,598.20-7,498,289.76

Finding the Fourth Proportional to 13,609,861.26, 18,781,598.20 and 7,498,289.76

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Solution

The fourth proportional to 13,609,861.26, 18,781,598.20 and 7,498,289.76 is: 10,347,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,861.26 : 18,781,598.20 = 7,498,289.76 : x
  2. Step 2: Convert to fraction form
    13,609,861.26/18,781,598.20 = 7,498,289.76/x
  3. Step 3: Cross multiply
    13,609,861.26x = 18,781,598.20 × 7,498,289.76
  4. Step 4: Simplify right side
    13,609,861.26x = 140,829,865,459,494.44
  5. Step 5: Solve for x
    x = 140,829,865,459,494.44/13,609,861.26
  6. Step 6: Final answer
    x = 10,347,634.17

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.