Home / 18,403,368.20-27,605,052.30-12,663,805.40

Finding the Fourth Proportional to 18,403,368.20, 27,605,052.30 and 12,663,805.40

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Solution

The fourth proportional to 18,403,368.20, 27,605,052.30 and 12,663,805.40 is: 18,995,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403,368.20 : 27,605,052.30 = 12,663,805.40 : x
  2. Step 2: Convert to fraction form
    18,403,368.20/27,605,052.30 = 12,663,805.40/x
  3. Step 3: Cross multiply
    18,403,368.20x = 27,605,052.30 × 12,663,805.40
  4. Step 4: Simplify right side
    18,403,368.20x = 349,585,010,384,022.44
  5. Step 5: Solve for x
    x = 349,585,010,384,022.44/18,403,368.20
  6. Step 6: Final answer
    x = 18,995,708.10

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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.