Home / 20,736,114.30-31,104,171.45-11,666,187.90

Finding the Fourth Proportional to 20,736,114.30, 31,104,171.45 and 11,666,187.90

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Solution

The fourth proportional to 20,736,114.30, 31,104,171.45 and 11,666,187.90 is: 17,499,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,114.30 : 31,104,171.45 = 11,666,187.90 : x
  2. Step 2: Convert to fraction form
    20,736,114.30/31,104,171.45 = 11,666,187.90/x
  3. Step 3: Cross multiply
    20,736,114.30x = 31,104,171.45 × 11,666,187.90
  4. Step 4: Simplify right side
    20,736,114.30x = 362,867,108,609,515.44
  5. Step 5: Solve for x
    x = 362,867,108,609,515.44/20,736,114.30
  6. Step 6: Final answer
    x = 17,499,281.85

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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.