Home / 81,995,708.56-113,148,685.74-47,182,780.12

Finding the Fourth Proportional to 81,995,708.56, 113,148,685.74 and 47,182,780.12

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Solution

The fourth proportional to 81,995,708.56, 113,148,685.74 and 47,182,780.12 is: 65,109,133.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,995,708.56 : 113,148,685.74 = 47,182,780.12 : x
  2. Step 2: Convert to fraction form
    81,995,708.56/113,148,685.74 = 47,182,780.12/x
  3. Step 3: Cross multiply
    81,995,708.56x = 113,148,685.74 × 47,182,780.12
  4. Step 4: Simplify right side
    81,995,708.56x = 5,338,669,560,137,399
  5. Step 5: Solve for x
    x = 5,338,669,560,137,399/81,995,708.56
  6. Step 6: Final answer
    x = 65,109,133.81

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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.