Home / 20,166,132.90-30,261,009.15-7,387,929.30

Finding the Fourth Proportional to 20,166,132.90, 30,261,009.15 and 7,387,929.30

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Solution

The fourth proportional to 20,166,132.90, 30,261,009.15 and 7,387,929.30 is: 11,086,220.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166,132.90 : 30,261,009.15 = 7,387,929.30 : x
  2. Step 2: Convert to fraction form
    20,166,132.90/30,261,009.15 = 7,387,929.30/x
  3. Step 3: Cross multiply
    20,166,132.90x = 30,261,009.15 × 7,387,929.30
  4. Step 4: Simplify right side
    20,166,132.90x = 223,566,196,146,853.09
  5. Step 5: Solve for x
    x = 223,566,196,146,853.09/20,166,132.90
  6. Step 6: Final answer
    x = 11,086,220.51

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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.