Home / 20,725,304.80-31,087,957.20-15,085,112.80

Finding the Fourth Proportional to 20,725,304.80, 31,087,957.20 and 15,085,112.80

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Solution

The fourth proportional to 20,725,304.80, 31,087,957.20 and 15,085,112.80 is: 22,627,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725,304.80 : 31,087,957.20 = 15,085,112.80 : x
  2. Step 2: Convert to fraction form
    20,725,304.80/31,087,957.20 = 15,085,112.80/x
  3. Step 3: Cross multiply
    20,725,304.80x = 31,087,957.20 × 15,085,112.80
  4. Step 4: Simplify right side
    20,725,304.80x = 468,965,341,083,572.19
  5. Step 5: Solve for x
    x = 468,965,341,083,572.19/20,725,304.80
  6. Step 6: Final answer
    x = 22,627,669.20

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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.