Home / 20,387,796.30-30,581,694.45-11,317,869.90

Finding the Fourth Proportional to 20,387,796.30, 30,581,694.45 and 11,317,869.90

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Solution

The fourth proportional to 20,387,796.30, 30,581,694.45 and 11,317,869.90 is: 16,976,804.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,387,796.30 : 30,581,694.45 = 11,317,869.90 : x
  2. Step 2: Convert to fraction form
    20,387,796.30/30,581,694.45 = 11,317,869.90/x
  3. Step 3: Cross multiply
    20,387,796.30x = 30,581,694.45 × 11,317,869.90
  4. Step 4: Simplify right side
    20,387,796.30x = 346,119,639,106,652.06
  5. Step 5: Solve for x
    x = 346,119,639,106,652.06/20,387,796.30
  6. Step 6: Final answer
    x = 16,976,804.85

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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.