Home / 12,452,426.40-18,678,639.60-10,326,662.40

Finding the Fourth Proportional to 12,452,426.40, 18,678,639.60 and 10,326,662.40

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Solution

The fourth proportional to 12,452,426.40, 18,678,639.60 and 10,326,662.40 is: 15,489,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452,426.40 : 18,678,639.60 = 10,326,662.40 : x
  2. Step 2: Convert to fraction form
    12,452,426.40/18,678,639.60 = 10,326,662.40/x
  3. Step 3: Cross multiply
    12,452,426.40x = 18,678,639.60 × 10,326,662.40
  4. Step 4: Simplify right side
    12,452,426.40x = 192,888,005,240,471.06
  5. Step 5: Solve for x
    x = 192,888,005,240,471.06/12,452,426.40
  6. Step 6: Final answer
    x = 15,489,993.60

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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.