Home / 127,857,999.40-191,814,992.70-51,161,756.20

Finding the Fourth Proportional to 127,857,999.40, 191,814,992.70 and 51,161,756.20

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Solution

The fourth proportional to 127,857,999.40, 191,814,992.70 and 51,161,756.20 is: 76,753,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,857,999.40 : 191,814,992.70 = 51,161,756.20 : x
  2. Step 2: Convert to fraction form
    127,857,999.40/191,814,992.70 = 51,161,756.20/x
  3. Step 3: Cross multiply
    127,857,999.40x = 191,814,992.70 × 51,161,756.20
  4. Step 4: Simplify right side
    127,857,999.40x = 9,813,591,892,022,180
  5. Step 5: Solve for x
    x = 9,813,591,892,022,180/127,857,999.40
  6. Step 6: Final answer
    x = 76,753,835.80

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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.