Home / 20,310,962.82-30,466,641.15-5,164,894.32

Finding the Fourth Proportional to 20,310,962.82, 30,466,641.15 and 5,164,894.32

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Solution

The fourth proportional to 20,310,962.82, 30,466,641.15 and 5,164,894.32 is: 7,747,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310,962.82 : 30,466,641.15 = 5,164,894.32 : x
  2. Step 2: Convert to fraction form
    20,310,962.82/30,466,641.15 = 5,164,894.32/x
  3. Step 3: Cross multiply
    20,310,962.82x = 30,466,641.15 × 5,164,894.32
  4. Step 4: Simplify right side
    20,310,962.82x = 157,356,981,825,113.28
  5. Step 5: Solve for x
    x = 157,356,981,825,113.28/20,310,962.82
  6. Step 6: Final answer
    x = 7,747,391.55

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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.