Home / 28,930,868.20-39,945,831.78-25,347,687.40

Finding the Fourth Proportional to 28,930,868.20, 39,945,831.78 and 25,347,687.40

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Solution

The fourth proportional to 28,930,868.20, 39,945,831.78 and 25,347,687.40 is: 34,998,412.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930,868.20 : 39,945,831.78 = 25,347,687.40 : x
  2. Step 2: Convert to fraction form
    28,930,868.20/39,945,831.78 = 25,347,687.40/x
  3. Step 3: Cross multiply
    28,930,868.20x = 39,945,831.78 × 25,347,687.40
  4. Step 4: Simplify right side
    28,930,868.20x = 1,012,534,456,892,425.50
  5. Step 5: Solve for x
    x = 1,012,534,456,892,425.50/28,930,868.20
  6. Step 6: Final answer
    x = 34,998,412.42

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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.