Home / 128,734,532.33-177,652,419.66-69,997,209.54

Finding the Fourth Proportional to 128,734,532.33, 177,652,419.66 and 69,997,209.54

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Solution

The fourth proportional to 128,734,532.33, 177,652,419.66 and 69,997,209.54 is: 96,595,477.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,734,532.33 : 177,652,419.66 = 69,997,209.54 : x
  2. Step 2: Convert to fraction form
    128,734,532.33/177,652,419.66 = 69,997,209.54/x
  3. Step 3: Cross multiply
    128,734,532.33x = 177,652,419.66 × 69,997,209.54
  4. Step 4: Simplify right side
    128,734,532.33x = 12,435,173,644,229,036
  5. Step 5: Solve for x
    x = 12,435,173,644,229,036/128,734,532.33
  6. Step 6: Final answer
    x = 96,595,477.68

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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.