Home / 12,306,039.45-18,459,059.18-7,267,191.45

Finding the Fourth Proportional to 12,306,039.45, 18,459,059.18 and 7,267,191.45

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Solution

The fourth proportional to 12,306,039.45, 18,459,059.18 and 7,267,191.45 is: 10,900,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306,039.45 : 18,459,059.18 = 7,267,191.45 : x
  2. Step 2: Convert to fraction form
    12,306,039.45/18,459,059.18 = 7,267,191.45/x
  3. Step 3: Cross multiply
    12,306,039.45x = 18,459,059.18 × 7,267,191.45
  4. Step 4: Simplify right side
    12,306,039.45x = 134,145,517,011,604.06
  5. Step 5: Solve for x
    x = 134,145,517,011,604.06/12,306,039.45
  6. Step 6: Final answer
    x = 10,900,787.18

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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.