Home / 15,205,382.40-20,983,426.56-9,093,810.72

Finding the Fourth Proportional to 15,205,382.40, 20,983,426.56 and 9,093,810.72

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Solution

The fourth proportional to 15,205,382.40, 20,983,426.56 and 9,093,810.72 is: 12,549,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,205,382.40 : 20,983,426.56 = 9,093,810.72 : x
  2. Step 2: Convert to fraction form
    15,205,382.40/20,983,426.56 = 9,093,810.72/x
  3. Step 3: Cross multiply
    15,205,382.40x = 20,983,426.56 × 9,093,810.72
  4. Step 4: Simplify right side
    15,205,382.40x = 190,819,309,393,660.72
  5. Step 5: Solve for x
    x = 190,819,309,393,660.72/15,205,382.40
  6. Step 6: Final answer
    x = 12,549,458.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.