Home / 128,723,272.20-193,084,908.30-103,214,104.20

Finding the Fourth Proportional to 128,723,272.20, 193,084,908.30 and 103,214,104.20

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Solution

The fourth proportional to 128,723,272.20, 193,084,908.30 and 103,214,104.20 is: 154,821,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,723,272.20 : 193,084,908.30 = 103,214,104.20 : x
  2. Step 2: Convert to fraction form
    128,723,272.20/193,084,908.30 = 103,214,104.20/x
  3. Step 3: Cross multiply
    128,723,272.20x = 193,084,908.30 × 103,214,104.20
  4. Step 4: Simplify right side
    128,723,272.20x = 19,929,085,844,723,648
  5. Step 5: Solve for x
    x = 19,929,085,844,723,648/128,723,272.20
  6. Step 6: Final answer
    x = 154,821,156.30

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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.