Home / 151,717,629.47-209,370,321.56-82,103,002.43

Finding the Fourth Proportional to 151,717,629.47, 209,370,321.56 and 82,103,002.43

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Solution

The fourth proportional to 151,717,629.47, 209,370,321.56 and 82,103,002.43 is: 113,302,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,717,629.47 : 209,370,321.56 = 82,103,002.43 : x
  2. Step 2: Convert to fraction form
    151,717,629.47/209,370,321.56 = 82,103,002.43/x
  3. Step 3: Cross multiply
    151,717,629.47x = 209,370,321.56 × 82,103,002.43
  4. Step 4: Simplify right side
    151,717,629.47x = 17,189,932,019,810,564
  5. Step 5: Solve for x
    x = 17,189,932,019,810,564/151,717,629.47
  6. Step 6: Final answer
    x = 113,302,139.51

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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.