Home / 20,803,071.90-31,195,276.65-8,019,327.90

Finding the Fourth Proportional to 20,803,071.90, 31,195,276.65 and 8,019,327.90

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Solution

The fourth proportional to 20,803,071.90, 31,195,276.65 and 8,019,327.90 is: 12,025,394.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803,071.90 : 31,195,276.65 = 8,019,327.90 : x
  2. Step 2: Convert to fraction form
    20,803,071.90/31,195,276.65 = 8,019,327.90/x
  3. Step 3: Cross multiply
    20,803,071.90x = 31,195,276.65 × 8,019,327.90
  4. Step 4: Simplify right side
    20,803,071.90x = 250,165,152,387,563.53
  5. Step 5: Solve for x
    x = 250,165,152,387,563.53/20,803,071.90
  6. Step 6: Final answer
    x = 12,025,394.79

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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.