Home / 753,313,454.40-1,130,691,794.40-390,068,500.80

Finding the Fourth Proportional to 753,313,454.40, 1,130,691,794.40 and 390,068,500.80

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Solution

The fourth proportional to 753,313,454.40, 1,130,691,794.40 and 390,068,500.80 is: 585,476,404.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,313,454.40 : 1,130,691,794.40 = 390,068,500.80 : x
  2. Step 2: Convert to fraction form
    753,313,454.40/1,130,691,794.40 = 390,068,500.80/x
  3. Step 3: Cross multiply
    753,313,454.40x = 1,130,691,794.40 × 390,068,500.80
  4. Step 4: Simplify right side
    753,313,454.40x = 441,047,253,108,469,888
  5. Step 5: Solve for x
    x = 441,047,253,108,469,888/753,313,454.40
  6. Step 6: Final answer
    x = 585,476,404.98

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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.