Home / 81,835,419.68-112,932,323.52-45,165,990.56

Finding the Fourth Proportional to 81,835,419.68, 112,932,323.52 and 45,165,990.56

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Solution

The fourth proportional to 81,835,419.68, 112,932,323.52 and 45,165,990.56 is: 62,328,760.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,835,419.68 : 112,932,323.52 = 45,165,990.56 : x
  2. Step 2: Convert to fraction form
    81,835,419.68/112,932,323.52 = 45,165,990.56/x
  3. Step 3: Cross multiply
    81,835,419.68x = 112,932,323.52 × 45,165,990.56
  4. Step 4: Simplify right side
    81,835,419.68x = 5,100,700,258,023,186
  5. Step 5: Solve for x
    x = 5,100,700,258,023,186/81,835,419.68
  6. Step 6: Final answer
    x = 62,328,760.31

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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.