Home / 20,920,086.60-31,380,129.90-7,452,054.60

Finding the Fourth Proportional to 20,920,086.60, 31,380,129.90 and 7,452,054.60

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Solution

The fourth proportional to 20,920,086.60, 31,380,129.90 and 7,452,054.60 is: 11,178,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,920,086.60 : 31,380,129.90 = 7,452,054.60 : x
  2. Step 2: Convert to fraction form
    20,920,086.60/31,380,129.90 = 7,452,054.60/x
  3. Step 3: Cross multiply
    20,920,086.60x = 31,380,129.90 × 7,452,054.60
  4. Step 4: Simplify right side
    20,920,086.60x = 233,846,441,369,892.53
  5. Step 5: Solve for x
    x = 233,846,441,369,892.53/20,920,086.60
  6. Step 6: Final answer
    x = 11,178,081.90

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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.