Home / 27,902,997.20-38,501,657.16-15,679,816.40

Finding the Fourth Proportional to 27,902,997.20, 38,501,657.16 and 15,679,816.40

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Solution

The fourth proportional to 27,902,997.20, 38,501,657.16 and 15,679,816.40 is: 21,635,629.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,902,997.20 : 38,501,657.16 = 15,679,816.40 : x
  2. Step 2: Convert to fraction form
    27,902,997.20/38,501,657.16 = 15,679,816.40/x
  3. Step 3: Cross multiply
    27,902,997.20x = 38,501,657.16 × 15,679,816.40
  4. Step 4: Simplify right side
    27,902,997.20x = 603,698,915,364,545.38
  5. Step 5: Solve for x
    x = 603,698,915,364,545.38/27,902,997.20
  6. Step 6: Final answer
    x = 21,635,629.72

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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.