Home / 20,609,762.80-30,914,644.20-7,146,590.80

Finding the Fourth Proportional to 20,609,762.80, 30,914,644.20 and 7,146,590.80

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Solution

The fourth proportional to 20,609,762.80, 30,914,644.20 and 7,146,590.80 is: 10,719,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609,762.80 : 30,914,644.20 = 7,146,590.80 : x
  2. Step 2: Convert to fraction form
    20,609,762.80/30,914,644.20 = 7,146,590.80/x
  3. Step 3: Cross multiply
    20,609,762.80x = 30,914,644.20 × 7,146,590.80
  4. Step 4: Simplify right side
    20,609,762.80x = 220,934,311,824,993.34
  5. Step 5: Solve for x
    x = 220,934,311,824,993.34/20,609,762.80
  6. Step 6: Final answer
    x = 10,719,886.20

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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.