Home / 20,751,159.20-31,131,404.40-6,374,890.40

Finding the Fourth Proportional to 20,751,159.20, 31,131,404.40 and 6,374,890.40

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Solution

The fourth proportional to 20,751,159.20, 31,131,404.40 and 6,374,890.40 is: 9,563,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,751,159.20 : 31,131,404.40 = 6,374,890.40 : x
  2. Step 2: Convert to fraction form
    20,751,159.20/31,131,404.40 = 6,374,890.40/x
  3. Step 3: Cross multiply
    20,751,159.20x = 31,131,404.40 × 6,374,890.40
  4. Step 4: Simplify right side
    20,751,159.20x = 198,459,291,048,077.75
  5. Step 5: Solve for x
    x = 198,459,291,048,077.75/20,751,159.20
  6. Step 6: Final answer
    x = 9,563,768.90

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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.