Home / 127,823,676.80-191,735,515.20-79,356,257.60

Finding the Fourth Proportional to 127,823,676.80, 191,735,515.20 and 79,356,257.60

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Solution

The fourth proportional to 127,823,676.80, 191,735,515.20 and 79,356,257.60 is: 119,034,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,823,676.80 : 191,735,515.20 = 79,356,257.60 : x
  2. Step 2: Convert to fraction form
    127,823,676.80/191,735,515.20 = 79,356,257.60/x
  3. Step 3: Cross multiply
    127,823,676.80x = 191,735,515.20 × 79,356,257.60
  4. Step 4: Simplify right side
    127,823,676.80x = 15,215,412,935,279,914
  5. Step 5: Solve for x
    x = 15,215,412,935,279,914/127,823,676.80
  6. Step 6: Final answer
    x = 119,034,386.40

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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.