Home / 801,459,349.80-1,203,084,819.90-620,508,719.40

Finding the Fourth Proportional to 801,459,349.80, 1,203,084,819.90 and 620,508,719.40

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Solution

The fourth proportional to 801,459,349.80, 1,203,084,819.90 and 620,508,719.40 is: 931,456,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,459,349.80 : 1,203,084,819.90 = 620,508,719.40 : x
  2. Step 2: Convert to fraction form
    801,459,349.80/1,203,084,819.90 = 620,508,719.40/x
  3. Step 3: Cross multiply
    801,459,349.80x = 1,203,084,819.90 × 620,508,719.40
  4. Step 4: Simplify right side
    801,459,349.80x = 746,524,620,925,728,640
  5. Step 5: Solve for x
    x = 746,524,620,925,728,640/801,459,349.80
  6. Step 6: Final answer
    x = 931,456,624.86

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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.