Home / 378,902,026.70-568,353,040.05-256,458,020.30

Finding the Fourth Proportional to 378,902,026.70, 568,353,040.05 and 256,458,020.30

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Solution

The fourth proportional to 378,902,026.70, 568,353,040.05 and 256,458,020.30 is: 384,687,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,902,026.70 : 568,353,040.05 = 256,458,020.30 : x
  2. Step 2: Convert to fraction form
    378,902,026.70/568,353,040.05 = 256,458,020.30/x
  3. Step 3: Cross multiply
    378,902,026.70x = 568,353,040.05 × 256,458,020.30
  4. Step 4: Simplify right side
    378,902,026.70x = 145,758,695,482,709,600
  5. Step 5: Solve for x
    x = 145,758,695,482,709,600/378,902,026.70
  6. Step 6: Final answer
    x = 384,687,030.45

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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.