Home / 28,067,078.80-42,100,618.20-9,871,129.45

Finding the Fourth Proportional to 28,067,078.80, 42,100,618.20 and 9,871,129.45

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Solution

The fourth proportional to 28,067,078.80, 42,100,618.20 and 9,871,129.45 is: 14,806,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067,078.80 : 42,100,618.20 = 9,871,129.45 : x
  2. Step 2: Convert to fraction form
    28,067,078.80/42,100,618.20 = 9,871,129.45/x
  3. Step 3: Cross multiply
    28,067,078.80x = 42,100,618.20 × 9,871,129.45
  4. Step 4: Simplify right side
    28,067,078.80x = 415,580,652,177,226
  5. Step 5: Solve for x
    x = 415,580,652,177,226/28,067,078.80
  6. Step 6: Final answer
    x = 14,806,694.18

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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.