Home / 20,342,095.71-28,079,458.34-13,468,792.11

Finding the Fourth Proportional to 20,342,095.71, 28,079,458.34 and 13,468,792.11

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Solution

The fourth proportional to 20,342,095.71, 28,079,458.34 and 13,468,792.11 is: 18,591,810.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342,095.71 : 28,079,458.34 = 13,468,792.11 : x
  2. Step 2: Convert to fraction form
    20,342,095.71/28,079,458.34 = 13,468,792.11/x
  3. Step 3: Cross multiply
    20,342,095.71x = 28,079,458.34 × 13,468,792.11
  4. Step 4: Simplify right side
    20,342,095.71x = 378,196,386,942,865.69
  5. Step 5: Solve for x
    x = 378,196,386,942,865.69/20,342,095.71
  6. Step 6: Final answer
    x = 18,591,810.42

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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.