Home / 145,729,401.20-218,678,082.60-54,918,162.80

Finding the Fourth Proportional to 145,729,401.20, 218,678,082.60 and 54,918,162.80

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Solution

The fourth proportional to 145,729,401.20, 218,678,082.60 and 54,918,162.80 is: 82,408,892.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,729,401.20 : 218,678,082.60 = 54,918,162.80 : x
  2. Step 2: Convert to fraction form
    145,729,401.20/218,678,082.60 = 54,918,162.80/x
  3. Step 3: Cross multiply
    145,729,401.20x = 218,678,082.60 × 54,918,162.80
  4. Step 4: Simplify right side
    145,729,401.20x = 12,009,398,541,018,646
  5. Step 5: Solve for x
    x = 12,009,398,541,018,646/145,729,401.20
  6. Step 6: Final answer
    x = 82,408,892.39

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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.