Home / 10,428,930,147.90-15,643,395,221.85-4,918,949,859.90

Finding the Fourth Proportional to 10,428,930,147.90, 15,643,395,221.85 and 4,918,949,859.90

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Solution

The fourth proportional to 10,428,930,147.90, 15,643,395,221.85 and 4,918,949,859.90 is: 7,378,424,789.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428,930,147.90 : 15,643,395,221.85 = 4,918,949,859.90 : x
  2. Step 2: Convert to fraction form
    10,428,930,147.90/15,643,395,221.85 = 4,918,949,859.90/x
  3. Step 3: Cross multiply
    10,428,930,147.90x = 15,643,395,221.85 × 4,918,949,859.90
  4. Step 4: Simplify right side
    10,428,930,147.90x = 76,949,076,734,879,383,552
  5. Step 5: Solve for x
    x = 76,949,076,734,879,383,552/10,428,930,147.90
  6. Step 6: Final answer
    x = 7,378,424,789.85

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Double scale
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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.