Home / 81,459,152.40-122,330,446.20-43,195,400.40

Finding the Fourth Proportional to 81,459,152.40, 122,330,446.20 and 43,195,400.40

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Solution

The fourth proportional to 81,459,152.40, 122,330,446.20 and 43,195,400.40 is: 64,868,249.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,459,152.40 : 122,330,446.20 = 43,195,400.40 : x
  2. Step 2: Convert to fraction form
    81,459,152.40/122,330,446.20 = 43,195,400.40/x
  3. Step 3: Cross multiply
    81,459,152.40x = 122,330,446.20 × 43,195,400.40
  4. Step 4: Simplify right side
    81,459,152.40x = 5,284,112,604,719,658
  5. Step 5: Solve for x
    x = 5,284,112,604,719,658/81,459,152.40
  6. Step 6: Final answer
    x = 64,868,249.29

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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.