Home / 645,040,281.60-969,949,209.60-539,933,644.80

Finding the Fourth Proportional to 645,040,281.60, 969,949,209.60 and 539,933,644.80

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Solution

The fourth proportional to 645,040,281.60, 969,949,209.60 and 539,933,644.80 is: 811,900,011.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,040,281.60 : 969,949,209.60 = 539,933,644.80 : x
  2. Step 2: Convert to fraction form
    645,040,281.60/969,949,209.60 = 539,933,644.80/x
  3. Step 3: Cross multiply
    645,040,281.60x = 969,949,209.60 × 539,933,644.80
  4. Step 4: Simplify right side
    645,040,281.60x = 523,708,212,010,207,104
  5. Step 5: Solve for x
    x = 523,708,212,010,207,104/645,040,281.60
  6. Step 6: Final answer
    x = 811,900,011.44

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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.