Home / 150,408,939.20-225,613,408.80-99,278,998.40

Finding the Fourth Proportional to 150,408,939.20, 225,613,408.80 and 99,278,998.40

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Solution

The fourth proportional to 150,408,939.20, 225,613,408.80 and 99,278,998.40 is: 148,918,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,408,939.20 : 225,613,408.80 = 99,278,998.40 : x
  2. Step 2: Convert to fraction form
    150,408,939.20/225,613,408.80 = 99,278,998.40/x
  3. Step 3: Cross multiply
    150,408,939.20x = 225,613,408.80 × 99,278,998.40
  4. Step 4: Simplify right side
    150,408,939.20x = 22,398,673,251,273,748
  5. Step 5: Solve for x
    x = 22,398,673,251,273,748/150,408,939.20
  6. Step 6: Final answer
    x = 148,918,497.60

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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.