Home / 12,082,685.40-18,124,028.10-9,870,845.40

Finding the Fourth Proportional to 12,082,685.40, 18,124,028.10 and 9,870,845.40

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Solution

The fourth proportional to 12,082,685.40, 18,124,028.10 and 9,870,845.40 is: 14,806,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,082,685.40 : 18,124,028.10 = 9,870,845.40 : x
  2. Step 2: Convert to fraction form
    12,082,685.40/18,124,028.10 = 9,870,845.40/x
  3. Step 3: Cross multiply
    12,082,685.40x = 18,124,028.10 × 9,870,845.40
  4. Step 4: Simplify right side
    12,082,685.40x = 178,899,479,400,355.75
  5. Step 5: Solve for x
    x = 178,899,479,400,355.75/12,082,685.40
  6. Step 6: Final answer
    x = 14,806,268.10

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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.