Home / 69,109,788-103,681,732.44-20,587,453.20

Finding the Fourth Proportional to 69,109,788, 103,681,732.44 and 20,587,453.20

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Solution

The fourth proportional to 69,109,788, 103,681,732.44 and 20,587,453.20 is: 30,886,259.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,109,788 : 103,681,732.44 = 20,587,453.20 : x
  2. Step 2: Convert to fraction form
    69,109,788/103,681,732.44 = 20,587,453.20/x
  3. Step 3: Cross multiply
    69,109,788x = 103,681,732.44 × 20,587,453.20
  4. Step 4: Simplify right side
    69,109,788x = 2,134,542,814,303,421.75
  5. Step 5: Solve for x
    x = 2,134,542,814,303,421.75/69,109,788
  6. Step 6: Final answer
    x = 30,886,259.04

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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.