Home / 12,454,617.20-18,681,925.80-7,415,769.20

Finding the Fourth Proportional to 12,454,617.20, 18,681,925.80 and 7,415,769.20

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Solution

The fourth proportional to 12,454,617.20, 18,681,925.80 and 7,415,769.20 is: 11,123,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454,617.20 : 18,681,925.80 = 7,415,769.20 : x
  2. Step 2: Convert to fraction form
    12,454,617.20/18,681,925.80 = 7,415,769.20/x
  3. Step 3: Cross multiply
    12,454,617.20x = 18,681,925.80 × 7,415,769.20
  4. Step 4: Simplify right side
    12,454,617.20x = 138,540,849,944,325.38
  5. Step 5: Solve for x
    x = 138,540,849,944,325.38/12,454,617.20
  6. Step 6: Final answer
    x = 11,123,653.80

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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.