Home / 90,786,963.50-125,324,667.77-61,034,866.70

Finding the Fourth Proportional to 90,786,963.50, 125,324,667.77 and 61,034,866.70

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Solution

The fourth proportional to 90,786,963.50, 125,324,667.77 and 61,034,866.70 is: 84,254,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,786,963.50 : 125,324,667.77 = 61,034,866.70 : x
  2. Step 2: Convert to fraction form
    90,786,963.50/125,324,667.77 = 61,034,866.70/x
  3. Step 3: Cross multiply
    90,786,963.50x = 125,324,667.77 × 61,034,866.70
  4. Step 4: Simplify right side
    90,786,963.50x = 7,649,174,391,563,736
  5. Step 5: Solve for x
    x = 7,649,174,391,563,736/90,786,963.50
  6. Step 6: Final answer
    x = 84,254,105.40

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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.