Home / 127,789,390.80-191,684,086.20-51,167,408.40

Finding the Fourth Proportional to 127,789,390.80, 191,684,086.20 and 51,167,408.40

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Solution

The fourth proportional to 127,789,390.80, 191,684,086.20 and 51,167,408.40 is: 76,751,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,789,390.80 : 191,684,086.20 = 51,167,408.40 : x
  2. Step 2: Convert to fraction form
    127,789,390.80/191,684,086.20 = 51,167,408.40/x
  3. Step 3: Cross multiply
    127,789,390.80x = 191,684,086.20 × 51,167,408.40
  4. Step 4: Simplify right side
    127,789,390.80x = 9,807,977,922,376,204
  5. Step 5: Solve for x
    x = 9,807,977,922,376,204/127,789,390.80
  6. Step 6: Final answer
    x = 76,751,112.60

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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.