Home / 69,121,643.02-103,682,431.72-20,598,258.49

Finding the Fourth Proportional to 69,121,643.02, 103,682,431.72 and 20,598,258.49

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Solution

The fourth proportional to 69,121,643.02, 103,682,431.72 and 20,598,258.49 is: 30,897,377.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,121,643.02 : 103,682,431.72 = 20,598,258.49 : x
  2. Step 2: Convert to fraction form
    69,121,643.02/103,682,431.72 = 20,598,258.49/x
  3. Step 3: Cross multiply
    69,121,643.02x = 103,682,431.72 × 20,598,258.49
  4. Step 4: Simplify right side
    69,121,643.02x = 2,135,677,529,206,877
  5. Step 5: Solve for x
    x = 2,135,677,529,206,877/69,121,643.02
  6. Step 6: Final answer
    x = 30,897,377.96

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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.