Home / 90,662,447.20-135,993,670.80-76,632,404.80

Finding the Fourth Proportional to 90,662,447.20, 135,993,670.80 and 76,632,404.80

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Solution

The fourth proportional to 90,662,447.20, 135,993,670.80 and 76,632,404.80 is: 114,948,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,662,447.20 : 135,993,670.80 = 76,632,404.80 : x
  2. Step 2: Convert to fraction form
    90,662,447.20/135,993,670.80 = 76,632,404.80/x
  3. Step 3: Cross multiply
    90,662,447.20x = 135,993,670.80 × 76,632,404.80
  4. Step 4: Simplify right side
    90,662,447.20x = 10,421,522,030,983,540
  5. Step 5: Solve for x
    x = 10,421,522,030,983,540/90,662,447.20
  6. Step 6: Final answer
    x = 114,948,607.20

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1.5x scale

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.