Home / 20,444,568-30,657,870.72-7,656,103.68

Finding the Fourth Proportional to 20,444,568, 30,657,870.72 and 7,656,103.68

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Solution

The fourth proportional to 20,444,568, 30,657,870.72 and 7,656,103.68 is: 11,480,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444,568 : 30,657,870.72 = 7,656,103.68 : x
  2. Step 2: Convert to fraction form
    20,444,568/30,657,870.72 = 7,656,103.68/x
  3. Step 3: Cross multiply
    20,444,568x = 30,657,870.72 × 7,656,103.68
  4. Step 4: Simplify right side
    20,444,568x = 234,719,836,840,356.22
  5. Step 5: Solve for x
    x = 234,719,836,840,356.22/20,444,568
  6. Step 6: Final answer
    x = 11,480,792.20

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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.