Home / 38,412,142.80-57,478,246.20-28,334,446.80

Finding the Fourth Proportional to 38,412,142.80, 57,478,246.20 and 28,334,446.80

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Solution

The fourth proportional to 38,412,142.80, 57,478,246.20 and 28,334,446.80 is: 42,398,423.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,412,142.80 : 57,478,246.20 = 28,334,446.80 : x
  2. Step 2: Convert to fraction form
    38,412,142.80/57,478,246.20 = 28,334,446.80/x
  3. Step 3: Cross multiply
    38,412,142.80x = 57,478,246.20 × 28,334,446.80
  4. Step 4: Simplify right side
    38,412,142.80x = 1,628,614,309,111,202.25
  5. Step 5: Solve for x
    x = 1,628,614,309,111,202.25/38,412,142.80
  6. Step 6: Final answer
    x = 42,398,423.79

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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.