Home / 65,781,242.91-90,777,015.09-36,411,945.39

Finding the Fourth Proportional to 65,781,242.91, 90,777,015.09 and 36,411,945.39

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Solution

The fourth proportional to 65,781,242.91, 90,777,015.09 and 36,411,945.39 is: 50,247,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,781,242.91 : 90,777,015.09 = 36,411,945.39 : x
  2. Step 2: Convert to fraction form
    65,781,242.91/90,777,015.09 = 36,411,945.39/x
  3. Step 3: Cross multiply
    65,781,242.91x = 90,777,015.09 × 36,411,945.39
  4. Step 4: Simplify right side
    65,781,242.91x = 3,305,367,716,124,286
  5. Step 5: Solve for x
    x = 3,305,367,716,124,286/65,781,242.91
  6. Step 6: Final answer
    x = 50,247,875.68

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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.