Home / 31,530,386.76-43,526,581.38-18,475,833.84

Finding the Fourth Proportional to 31,530,386.76, 43,526,581.38 and 18,475,833.84

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Solution

The fourth proportional to 31,530,386.76, 43,526,581.38 and 18,475,833.84 is: 25,505,233.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530,386.76 : 43,526,581.38 = 18,475,833.84 : x
  2. Step 2: Convert to fraction form
    31,530,386.76/43,526,581.38 = 18,475,833.84/x
  3. Step 3: Cross multiply
    31,530,386.76x = 43,526,581.38 × 18,475,833.84
  4. Step 4: Simplify right side
    31,530,386.76x = 804,189,885,200,118
  5. Step 5: Solve for x
    x = 804,189,885,200,118/31,530,386.76
  6. Step 6: Final answer
    x = 25,505,233.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.