Home / 12,183,818.80-18,275,728.20-9,792,334.30

Finding the Fourth Proportional to 12,183,818.80, 18,275,728.20 and 9,792,334.30

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Solution

The fourth proportional to 12,183,818.80, 18,275,728.20 and 9,792,334.30 is: 14,688,501.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183,818.80 : 18,275,728.20 = 9,792,334.30 : x
  2. Step 2: Convert to fraction form
    12,183,818.80/18,275,728.20 = 9,792,334.30/x
  3. Step 3: Cross multiply
    12,183,818.80x = 18,275,728.20 × 9,792,334.30
  4. Step 4: Simplify right side
    12,183,818.80x = 178,962,040,110,337.28
  5. Step 5: Solve for x
    x = 178,962,040,110,337.28/12,183,818.80
  6. Step 6: Final answer
    x = 14,688,501.45

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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.