Home / 128,521,046.52-177,359,254.11-69,783,825.24

Finding the Fourth Proportional to 128,521,046.52, 177,359,254.11 and 69,783,825.24

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Solution

The fourth proportional to 128,521,046.52, 177,359,254.11 and 69,783,825.24 is: 96,301,792.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,521,046.52 : 177,359,254.11 = 69,783,825.24 : x
  2. Step 2: Convert to fraction form
    128,521,046.52/177,359,254.11 = 69,783,825.24/x
  3. Step 3: Cross multiply
    128,521,046.52x = 177,359,254.11 × 69,783,825.24
  4. Step 4: Simplify right side
    128,521,046.52x = 12,376,807,193,508,992
  5. Step 5: Solve for x
    x = 12,376,807,193,508,992/128,521,046.52
  6. Step 6: Final answer
    x = 96,301,792.81

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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.