Home / 39,315,112.56-54,255,124.55-21,912,578.87

Finding the Fourth Proportional to 39,315,112.56, 54,255,124.55 and 21,912,578.87

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Solution

The fourth proportional to 39,315,112.56, 54,255,124.55 and 21,912,578.87 is: 30,239,508.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,315,112.56 : 54,255,124.55 = 21,912,578.87 : x
  2. Step 2: Convert to fraction form
    39,315,112.56/54,255,124.55 = 21,912,578.87/x
  3. Step 3: Cross multiply
    39,315,112.56x = 54,255,124.55 × 21,912,578.87
  4. Step 4: Simplify right side
    39,315,112.56x = 1,188,869,695,587,054
  5. Step 5: Solve for x
    x = 1,188,869,695,587,054/39,315,112.56
  6. Step 6: Final answer
    x = 30,239,508.89

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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.