Home / 76,823,876.43-106,019,709.03-43,789,110.21

Finding the Fourth Proportional to 76,823,876.43, 106,019,709.03 and 43,789,110.21

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Solution

The fourth proportional to 76,823,876.43, 106,019,709.03 and 43,789,110.21 is: 60,430,545.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,823,876.43 : 106,019,709.03 = 43,789,110.21 : x
  2. Step 2: Convert to fraction form
    76,823,876.43/106,019,709.03 = 43,789,110.21/x
  3. Step 3: Cross multiply
    76,823,876.43x = 106,019,709.03 × 43,789,110.21
  4. Step 4: Simplify right side
    76,823,876.43x = 4,642,508,723,146,802
  5. Step 5: Solve for x
    x = 4,642,508,723,146,802/76,823,876.43
  6. Step 6: Final answer
    x = 60,430,545.02

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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.