Home / 868,969,830.60-1,303,454,745.90-323,640,505.80

Finding the Fourth Proportional to 868,969,830.60, 1,303,454,745.90 and 323,640,505.80

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Solution

The fourth proportional to 868,969,830.60, 1,303,454,745.90 and 323,640,505.80 is: 485,460,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,969,830.60 : 1,303,454,745.90 = 323,640,505.80 : x
  2. Step 2: Convert to fraction form
    868,969,830.60/1,303,454,745.90 = 323,640,505.80/x
  3. Step 3: Cross multiply
    868,969,830.60x = 1,303,454,745.90 × 323,640,505.80
  4. Step 4: Simplify right side
    868,969,830.60x = 421,850,753,250,486,528
  5. Step 5: Solve for x
    x = 421,850,753,250,486,528/868,969,830.60
  6. Step 6: Final answer
    x = 485,460,758.70

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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.