Home / 75,712,933.60-113,420,101.20-45,330,546.40

Finding the Fourth Proportional to 75,712,933.60, 113,420,101.20 and 45,330,546.40

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Solution

The fourth proportional to 75,712,933.60, 113,420,101.20 and 45,330,546.40 is: 67,906,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,712,933.60 : 113,420,101.20 = 45,330,546.40 : x
  2. Step 2: Convert to fraction form
    75,712,933.60/113,420,101.20 = 45,330,546.40/x
  3. Step 3: Cross multiply
    75,712,933.60x = 113,420,101.20 × 45,330,546.40
  4. Step 4: Simplify right side
    75,712,933.60x = 5,141,395,160,139,296
  5. Step 5: Solve for x
    x = 5,141,395,160,139,296/75,712,933.60
  6. Step 6: Final answer
    x = 67,906,431.78

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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.