Home / 100,609,066.20-150,913,599.30-80,453,674.20

Finding the Fourth Proportional to 100,609,066.20, 150,913,599.30 and 80,453,674.20

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Solution

The fourth proportional to 100,609,066.20, 150,913,599.30 and 80,453,674.20 is: 120,680,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,609,066.20 : 150,913,599.30 = 80,453,674.20 : x
  2. Step 2: Convert to fraction form
    100,609,066.20/150,913,599.30 = 80,453,674.20/x
  3. Step 3: Cross multiply
    100,609,066.20x = 150,913,599.30 × 80,453,674.20
  4. Step 4: Simplify right side
    100,609,066.20x = 12,141,553,550,431,550
  5. Step 5: Solve for x
    x = 12,141,553,550,431,550/100,609,066.20
  6. Step 6: Final answer
    x = 120,680,511.30

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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.