Home / 18,382,428.40-27,573,642.60-12,335,810.80

Finding the Fourth Proportional to 18,382,428.40, 27,573,642.60 and 12,335,810.80

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Solution

The fourth proportional to 18,382,428.40, 27,573,642.60 and 12,335,810.80 is: 18,503,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382,428.40 : 27,573,642.60 = 12,335,810.80 : x
  2. Step 2: Convert to fraction form
    18,382,428.40/27,573,642.60 = 12,335,810.80/x
  3. Step 3: Cross multiply
    18,382,428.40x = 27,573,642.60 × 12,335,810.80
  4. Step 4: Simplify right side
    18,382,428.40x = 340,143,238,180,420.12
  5. Step 5: Solve for x
    x = 340,143,238,180,420.12/18,382,428.40
  6. Step 6: Final answer
    x = 18,503,716.20

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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.