Home / 128,452,544.68-177,265,788.24-69,715,731.64

Finding the Fourth Proportional to 128,452,544.68, 177,265,788.24 and 69,715,731.64

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Solution

The fourth proportional to 128,452,544.68, 177,265,788.24 and 69,715,731.64 is: 96,208,402.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,452,544.68 : 177,265,788.24 = 69,715,731.64 : x
  2. Step 2: Convert to fraction form
    128,452,544.68/177,265,788.24 = 69,715,731.64/x
  3. Step 3: Cross multiply
    128,452,544.68x = 177,265,788.24 × 69,715,731.64
  4. Step 4: Simplify right side
    128,452,544.68x = 12,358,214,121,892,908
  5. Step 5: Solve for x
    x = 12,358,214,121,892,908/128,452,544.68
  6. Step 6: Final answer
    x = 96,208,402.51

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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.