Home / 113,485,052.20-170,227,578.30-78,847,637.80

Finding the Fourth Proportional to 113,485,052.20, 170,227,578.30 and 78,847,637.80

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Solution

The fourth proportional to 113,485,052.20, 170,227,578.30 and 78,847,637.80 is: 118,271,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,485,052.20 : 170,227,578.30 = 78,847,637.80 : x
  2. Step 2: Convert to fraction form
    113,485,052.20/170,227,578.30 = 78,847,637.80/x
  3. Step 3: Cross multiply
    113,485,052.20x = 170,227,578.30 × 78,847,637.80
  4. Step 4: Simplify right side
    113,485,052.20x = 13,422,042,437,369,540
  5. Step 5: Solve for x
    x = 13,422,042,437,369,540/113,485,052.20
  6. Step 6: Final answer
    x = 118,271,456.70

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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.