Home / 20,843,999.10-31,265,998.65-7,382,187.90

Finding the Fourth Proportional to 20,843,999.10, 31,265,998.65 and 7,382,187.90

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Solution

The fourth proportional to 20,843,999.10, 31,265,998.65 and 7,382,187.90 is: 11,073,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843,999.10 : 31,265,998.65 = 7,382,187.90 : x
  2. Step 2: Convert to fraction form
    20,843,999.10/31,265,998.65 = 7,382,187.90/x
  3. Step 3: Cross multiply
    20,843,999.10x = 31,265,998.65 × 7,382,187.90
  4. Step 4: Simplify right side
    20,843,999.10x = 230,811,476,915,446.34
  5. Step 5: Solve for x
    x = 230,811,476,915,446.34/20,843,999.10
  6. Step 6: Final answer
    x = 11,073,281.85

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1.5x scale

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.