Home / 378,902,279.45-568,353,419.18-256,458,273.05

Finding the Fourth Proportional to 378,902,279.45, 568,353,419.18 and 256,458,273.05

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Solution

The fourth proportional to 378,902,279.45, 568,353,419.18 and 256,458,273.05 is: 384,687,409.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,902,279.45 : 568,353,419.18 = 256,458,273.05 : x
  2. Step 2: Convert to fraction form
    378,902,279.45/568,353,419.18 = 256,458,273.05/x
  3. Step 3: Cross multiply
    378,902,279.45x = 568,353,419.18 × 256,458,273.05
  4. Step 4: Simplify right side
    378,902,279.45x = 145,758,936,363,683,264
  5. Step 5: Solve for x
    x = 145,758,936,363,683,264/378,902,279.45
  6. Step 6: Final answer
    x = 384,687,409.58

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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.