Home / 124,422,077.20-186,857,064.60-90,381,859.60

Finding the Fourth Proportional to 124,422,077.20, 186,857,064.60 and 90,381,859.60

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Solution

The fourth proportional to 124,422,077.20, 186,857,064.60 and 90,381,859.60 is: 135,735,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,422,077.20 : 186,857,064.60 = 90,381,859.60 : x
  2. Step 2: Convert to fraction form
    124,422,077.20/186,857,064.60 = 90,381,859.60/x
  3. Step 3: Cross multiply
    124,422,077.20x = 186,857,064.60 × 90,381,859.60
  4. Step 4: Simplify right side
    124,422,077.20x = 16,888,488,977,945,328
  5. Step 5: Solve for x
    x = 16,888,488,977,945,328/124,422,077.20
  6. Step 6: Final answer
    x = 135,735,468.80

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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.