Home / 13,153,613.80-19,730,420.70-12,145,844.20

Finding the Fourth Proportional to 13,153,613.80, 19,730,420.70 and 12,145,844.20

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Solution

The fourth proportional to 13,153,613.80, 19,730,420.70 and 12,145,844.20 is: 18,218,766.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153,613.80 : 19,730,420.70 = 12,145,844.20 : x
  2. Step 2: Convert to fraction form
    13,153,613.80/19,730,420.70 = 12,145,844.20/x
  3. Step 3: Cross multiply
    13,153,613.80x = 19,730,420.70 × 12,145,844.20
  4. Step 4: Simplify right side
    13,153,613.80x = 239,642,615,822,654.91
  5. Step 5: Solve for x
    x = 239,642,615,822,654.91/13,153,613.80
  6. Step 6: Final answer
    x = 18,218,766.30

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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.