Home / 66,023,221-91,110,269.78-39,576,514.76

Finding the Fourth Proportional to 66,023,221, 91,110,269.78 and 39,576,514.76

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Solution

The fourth proportional to 66,023,221, 91,110,269.78 and 39,576,514.76 is: 54,614,526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,023,221 : 91,110,269.78 = 39,576,514.76 : x
  2. Step 2: Convert to fraction form
    66,023,221/91,110,269.78 = 39,576,514.76/x
  3. Step 3: Cross multiply
    66,023,221x = 91,110,269.78 × 39,576,514.76
  4. Step 4: Simplify right side
    66,023,221x = 3,605,826,936,735,752
  5. Step 5: Solve for x
    x = 3,605,826,936,735,752/66,023,221
  6. Step 6: Final answer
    x = 54,614,526.25

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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.