Home / 61,018,906.20-91,528,359.30-20,629,390.20

Finding the Fourth Proportional to 61,018,906.20, 91,528,359.30 and 20,629,390.20

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Solution

The fourth proportional to 61,018,906.20, 91,528,359.30 and 20,629,390.20 is: 30,944,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,018,906.20 : 91,528,359.30 = 20,629,390.20 : x
  2. Step 2: Convert to fraction form
    61,018,906.20/91,528,359.30 = 20,629,390.20/x
  3. Step 3: Cross multiply
    61,018,906.20x = 91,528,359.30 × 20,629,390.20
  4. Step 4: Simplify right side
    61,018,906.20x = 1,888,174,238,365,498.75
  5. Step 5: Solve for x
    x = 1,888,174,238,365,498.75/61,018,906.20
  6. Step 6: Final answer
    x = 30,944,085.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.