Home / 21,067,539.13-31,601,308.73-5,111,187.13

Finding the Fourth Proportional to 21,067,539.13, 31,601,308.73 and 5,111,187.13

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Solution

The fourth proportional to 21,067,539.13, 31,601,308.73 and 5,111,187.13 is: 7,666,780.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067,539.13 : 31,601,308.73 = 5,111,187.13 : x
  2. Step 2: Convert to fraction form
    21,067,539.13/31,601,308.73 = 5,111,187.13/x
  3. Step 3: Cross multiply
    21,067,539.13x = 31,601,308.73 × 5,111,187.13
  4. Step 4: Simplify right side
    21,067,539.13x = 161,520,202,471,932.66
  5. Step 5: Solve for x
    x = 161,520,202,471,932.66/21,067,539.13
  6. Step 6: Final answer
    x = 7,666,780.70

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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.