Home / 20,746,713.28-28,596,198-13,868,685.76

Finding the Fourth Proportional to 20,746,713.28, 28,596,198 and 13,868,685.76

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Solution

The fourth proportional to 20,746,713.28, 28,596,198 and 13,868,685.76 is: 19,115,880.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746,713.28 : 28,596,198 = 13,868,685.76 : x
  2. Step 2: Convert to fraction form
    20,746,713.28/28,596,198 = 13,868,685.76/x
  3. Step 3: Cross multiply
    20,746,713.28x = 28,596,198 × 13,868,685.76
  4. Step 4: Simplify right side
    20,746,713.28x = 396,591,683,992,740.50
  5. Step 5: Solve for x
    x = 396,591,683,992,740.50/20,746,713.28
  6. Step 6: Final answer
    x = 19,115,880.12

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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.