Home / 69,109,789-103,681,733.94-20,587,454.20

Finding the Fourth Proportional to 69,109,789, 103,681,733.94 and 20,587,454.20

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Solution

The fourth proportional to 69,109,789, 103,681,733.94 and 20,587,454.20 is: 30,886,260.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,109,789 : 103,681,733.94 = 20,587,454.20 : x
  2. Step 2: Convert to fraction form
    69,109,789/103,681,733.94 = 20,587,454.20/x
  3. Step 3: Cross multiply
    69,109,789x = 103,681,733.94 × 20,587,454.20
  4. Step 4: Simplify right side
    69,109,789x = 2,134,542,948,866,335.50
  5. Step 5: Solve for x
    x = 2,134,542,948,866,335.50/69,109,789
  6. Step 6: Final answer
    x = 30,886,260.54

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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.