Home / 20,346,929.25-30,520,404.80-7,565,773.20

Finding the Fourth Proportional to 20,346,929.25, 30,520,404.80 and 7,565,773.20

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Solution

The fourth proportional to 20,346,929.25, 30,520,404.80 and 7,565,773.20 is: 11,348,663.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346,929.25 : 30,520,404.80 = 7,565,773.20 : x
  2. Step 2: Convert to fraction form
    20,346,929.25/30,520,404.80 = 7,565,773.20/x
  3. Step 3: Cross multiply
    20,346,929.25x = 30,520,404.80 × 7,565,773.20
  4. Step 4: Simplify right side
    20,346,929.25x = 230,910,460,688,991.38
  5. Step 5: Solve for x
    x = 230,910,460,688,991.38/20,346,929.25
  6. Step 6: Final answer
    x = 11,348,663.86

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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.