Home / 20,413,631.40-30,620,447.10-13,947,109.80

Finding the Fourth Proportional to 20,413,631.40, 30,620,447.10 and 13,947,109.80

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Solution

The fourth proportional to 20,413,631.40, 30,620,447.10 and 13,947,109.80 is: 20,920,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413,631.40 : 30,620,447.10 = 13,947,109.80 : x
  2. Step 2: Convert to fraction form
    20,413,631.40/30,620,447.10 = 13,947,109.80/x
  3. Step 3: Cross multiply
    20,413,631.40x = 30,620,447.10 × 13,947,109.80
  4. Step 4: Simplify right side
    20,413,631.40x = 427,066,737,828,791.62
  5. Step 5: Solve for x
    x = 427,066,737,828,791.62/20,413,631.40
  6. Step 6: Final answer
    x = 20,920,664.70

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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.