Home / 345,997,640.72-477,478,009.56-187,227,765.20

Finding the Fourth Proportional to 345,997,640.72, 477,478,009.56 and 187,227,765.20

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Solution

The fourth proportional to 345,997,640.72, 477,478,009.56 and 187,227,765.20 is: 258,375,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,997,640.72 : 477,478,009.56 = 187,227,765.20 : x
  2. Step 2: Convert to fraction form
    345,997,640.72/477,478,009.56 = 187,227,765.20/x
  3. Step 3: Cross multiply
    345,997,640.72x = 477,478,009.56 × 187,227,765.20
  4. Step 4: Simplify right side
    345,997,640.72x = 89,397,140,662,063,024
  5. Step 5: Solve for x
    x = 89,397,140,662,063,024/345,997,640.72
  6. Step 6: Final answer
    x = 258,375,000.70

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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.