Home / 73,152,010.20-109,728,015.30-66,433,546.20

Finding the Fourth Proportional to 73,152,010.20, 109,728,015.30 and 66,433,546.20

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Solution

The fourth proportional to 73,152,010.20, 109,728,015.30 and 66,433,546.20 is: 99,650,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,152,010.20 : 109,728,015.30 = 66,433,546.20 : x
  2. Step 2: Convert to fraction form
    73,152,010.20/109,728,015.30 = 66,433,546.20/x
  3. Step 3: Cross multiply
    73,152,010.20x = 109,728,015.30 × 66,433,546.20
  4. Step 4: Simplify right side
    73,152,010.20x = 7,289,621,173,866,857
  5. Step 5: Solve for x
    x = 7,289,621,173,866,857/73,152,010.20
  6. Step 6: Final answer
    x = 99,650,319.30

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Double scale
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Similar ratio
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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.