Home / 138,810,229.92-191,558,135.04-76,934,563.20

Finding the Fourth Proportional to 138,810,229.92, 191,558,135.04 and 76,934,563.20

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Solution

The fourth proportional to 138,810,229.92, 191,558,135.04 and 76,934,563.20 is: 106,169,707.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,810,229.92 : 191,558,135.04 = 76,934,563.20 : x
  2. Step 2: Convert to fraction form
    138,810,229.92/191,558,135.04 = 76,934,563.20/x
  3. Step 3: Cross multiply
    138,810,229.92x = 191,558,135.04 × 76,934,563.20
  4. Step 4: Simplify right side
    138,810,229.92x = 14,737,441,446,709,014
  5. Step 5: Solve for x
    x = 14,737,441,446,709,014/138,810,229.92
  6. Step 6: Final answer
    x = 106,169,707.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.