Home / 30,986,489.36-42,772,866.90-26,618,044.34

Finding the Fourth Proportional to 30,986,489.36, 42,772,866.90 and 26,618,044.34

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Solution

The fourth proportional to 30,986,489.36, 42,772,866.90 and 26,618,044.34 is: 36,742,789.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,986,489.36 : 42,772,866.90 = 26,618,044.34 : x
  2. Step 2: Convert to fraction form
    30,986,489.36/42,772,866.90 = 26,618,044.34/x
  3. Step 3: Cross multiply
    30,986,489.36x = 42,772,866.90 × 26,618,044.34
  4. Step 4: Simplify right side
    30,986,489.36x = 1,138,530,067,693,118.25
  5. Step 5: Solve for x
    x = 1,138,530,067,693,118.25/30,986,489.36
  6. Step 6: Final answer
    x = 36,742,789.88

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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.