Home / 53,253,930.47-79,883,175.04-20,912,830.83

Finding the Fourth Proportional to 53,253,930.47, 79,883,175.04 and 20,912,830.83

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Solution

The fourth proportional to 53,253,930.47, 79,883,175.04 and 20,912,830.83 is: 31,370,141.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,253,930.47 : 79,883,175.04 = 20,912,830.83 : x
  2. Step 2: Convert to fraction form
    53,253,930.47/79,883,175.04 = 20,912,830.83/x
  3. Step 3: Cross multiply
    53,253,930.47x = 79,883,175.04 × 20,912,830.83
  4. Step 4: Simplify right side
    53,253,930.47x = 1,670,583,325,722,516.25
  5. Step 5: Solve for x
    x = 1,670,583,325,722,516.25/53,253,930.47
  6. Step 6: Final answer
    x = 31,370,141.34

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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.