Home / 18,725,990.80-28,088,986.20-14,474,462.80

Finding the Fourth Proportional to 18,725,990.80, 28,088,986.20 and 14,474,462.80

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Solution

The fourth proportional to 18,725,990.80, 28,088,986.20 and 14,474,462.80 is: 21,711,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725,990.80 : 28,088,986.20 = 14,474,462.80 : x
  2. Step 2: Convert to fraction form
    18,725,990.80/28,088,986.20 = 14,474,462.80/x
  3. Step 3: Cross multiply
    18,725,990.80x = 28,088,986.20 × 14,474,462.80
  4. Step 4: Simplify right side
    18,725,990.80x = 406,572,985,841,613.38
  5. Step 5: Solve for x
    x = 406,572,985,841,613.38/18,725,990.80
  6. Step 6: Final answer
    x = 21,711,694.20

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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.