Home / 28,378,680.40-42,568,020.60-26,811,038.80

Finding the Fourth Proportional to 28,378,680.40, 42,568,020.60 and 26,811,038.80

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Solution

The fourth proportional to 28,378,680.40, 42,568,020.60 and 26,811,038.80 is: 40,216,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378,680.40 : 42,568,020.60 = 26,811,038.80 : x
  2. Step 2: Convert to fraction form
    28,378,680.40/42,568,020.60 = 26,811,038.80/x
  3. Step 3: Cross multiply
    28,378,680.40x = 42,568,020.60 × 26,811,038.80
  4. Step 4: Simplify right side
    28,378,680.40x = 1,141,292,851,945,799.25
  5. Step 5: Solve for x
    x = 1,141,292,851,945,799.25/28,378,680.40
  6. Step 6: Final answer
    x = 40,216,558.20

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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.