Home / 28,498,568.40-42,753,036.60-9,323,989.20

Finding the Fourth Proportional to 28,498,568.40, 42,753,036.60 and 9,323,989.20

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Solution

The fourth proportional to 28,498,568.40, 42,753,036.60 and 9,323,989.20 is: 13,987,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498,568.40 : 42,753,036.60 = 9,323,989.20 : x
  2. Step 2: Convert to fraction form
    28,498,568.40/42,753,036.60 = 9,323,989.20/x
  3. Step 3: Cross multiply
    28,498,568.40x = 42,753,036.60 × 9,323,989.20
  4. Step 4: Simplify right side
    28,498,568.40x = 398,628,851,525,604.69
  5. Step 5: Solve for x
    x = 398,628,851,525,604.69/28,498,568.40
  6. Step 6: Final answer
    x = 13,987,679.87

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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.