Home / 127,868,040.75-191,850,379.11-76,785,669.39

Finding the Fourth Proportional to 127,868,040.75, 191,850,379.11 and 76,785,669.39

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Solution

The fourth proportional to 127,868,040.75, 191,850,379.11 and 76,785,669.39 is: 115,207,519.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,868,040.75 : 191,850,379.11 = 76,785,669.39 : x
  2. Step 2: Convert to fraction form
    127,868,040.75/191,850,379.11 = 76,785,669.39/x
  3. Step 3: Cross multiply
    127,868,040.75x = 191,850,379.11 × 76,785,669.39
  4. Step 4: Simplify right side
    127,868,040.75x = 14,731,359,782,686,624
  5. Step 5: Solve for x
    x = 14,731,359,782,686,624/127,868,040.75
  6. Step 6: Final answer
    x = 115,207,519.38

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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.