Home / 100,320,279.20-150,480,418.80-85,014,778.40

Finding the Fourth Proportional to 100,320,279.20, 150,480,418.80 and 85,014,778.40

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Solution

The fourth proportional to 100,320,279.20, 150,480,418.80 and 85,014,778.40 is: 127,522,167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,320,279.20 : 150,480,418.80 = 85,014,778.40 : x
  2. Step 2: Convert to fraction form
    100,320,279.20/150,480,418.80 = 85,014,778.40/x
  3. Step 3: Cross multiply
    100,320,279.20x = 150,480,418.80 × 85,014,778.40
  4. Step 4: Simplify right side
    100,320,279.20x = 12,793,059,457,821,196
  5. Step 5: Solve for x
    x = 12,793,059,457,821,196/100,320,279.20
  6. Step 6: Final answer
    x = 127,522,167.60

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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.