Home / 13,609,073.20-20,389,990.20-12,758,767.60

Finding the Fourth Proportional to 13,609,073.20, 20,389,990.20 and 12,758,767.60

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Solution

The fourth proportional to 13,609,073.20, 20,389,990.20 and 12,758,767.60 is: 19,116,007.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,073.20 : 20,389,990.20 = 12,758,767.60 : x
  2. Step 2: Convert to fraction form
    13,609,073.20/20,389,990.20 = 12,758,767.60/x
  3. Step 3: Cross multiply
    13,609,073.20x = 20,389,990.20 × 12,758,767.60
  4. Step 4: Simplify right side
    13,609,073.20x = 260,151,146,328,077.50
  5. Step 5: Solve for x
    x = 260,151,146,328,077.50/13,609,073.20
  6. Step 6: Final answer
    x = 19,116,007.57

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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.