Home / 38,412,138.30-57,478,239.45-28,334,442.30

Finding the Fourth Proportional to 38,412,138.30, 57,478,239.45 and 28,334,442.30

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Solution

The fourth proportional to 38,412,138.30, 57,478,239.45 and 28,334,442.30 is: 42,398,417.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,412,138.30 : 57,478,239.45 = 28,334,442.30 : x
  2. Step 2: Convert to fraction form
    38,412,138.30/57,478,239.45 = 28,334,442.30/x
  3. Step 3: Cross multiply
    38,412,138.30x = 57,478,239.45 × 28,334,442.30
  4. Step 4: Simplify right side
    38,412,138.30x = 1,628,613,859,201,608.75
  5. Step 5: Solve for x
    x = 1,628,613,859,201,608.75/38,412,138.30
  6. Step 6: Final answer
    x = 42,398,417.04

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Double scale
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1.5x scale

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.