Home / 28,092,760.80-38,771,156.16-15,870,405.12

Finding the Fourth Proportional to 28,092,760.80, 38,771,156.16 and 15,870,405.12

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Solution

The fourth proportional to 28,092,760.80, 38,771,156.16 and 15,870,405.12 is: 21,902,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092,760.80 : 38,771,156.16 = 15,870,405.12 : x
  2. Step 2: Convert to fraction form
    28,092,760.80/38,771,156.16 = 15,870,405.12/x
  3. Step 3: Cross multiply
    28,092,760.80x = 38,771,156.16 × 15,870,405.12
  4. Step 4: Simplify right side
    28,092,760.80x = 615,313,955,229,983.50
  5. Step 5: Solve for x
    x = 615,313,955,229,983.50/28,092,760.80
  6. Step 6: Final answer
    x = 21,902,936.48

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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.