Home / 18,711,203.80-28,066,805.70-15,971,330.20

Finding the Fourth Proportional to 18,711,203.80, 28,066,805.70 and 15,971,330.20

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Solution

The fourth proportional to 18,711,203.80, 28,066,805.70 and 15,971,330.20 is: 23,956,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,203.80 : 28,066,805.70 = 15,971,330.20 : x
  2. Step 2: Convert to fraction form
    18,711,203.80/28,066,805.70 = 15,971,330.20/x
  3. Step 3: Cross multiply
    18,711,203.80x = 28,066,805.70 × 15,971,330.20
  4. Step 4: Simplify right side
    18,711,203.80x = 448,264,221,493,942.12
  5. Step 5: Solve for x
    x = 448,264,221,493,942.12/18,711,203.80
  6. Step 6: Final answer
    x = 23,956,995.30

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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.