Home / 61,192,228.20-91,788,342.30-20,802,712.20

Finding the Fourth Proportional to 61,192,228.20, 91,788,342.30 and 20,802,712.20

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Solution

The fourth proportional to 61,192,228.20, 91,788,342.30 and 20,802,712.20 is: 31,204,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,192,228.20 : 91,788,342.30 = 20,802,712.20 : x
  2. Step 2: Convert to fraction form
    61,192,228.20/91,788,342.30 = 20,802,712.20/x
  3. Step 3: Cross multiply
    61,192,228.20x = 91,788,342.30 × 20,802,712.20
  4. Step 4: Simplify right side
    61,192,228.20x = 1,909,446,468,181,986
  5. Step 5: Solve for x
    x = 1,909,446,468,181,986/61,192,228.20
  6. Step 6: Final answer
    x = 31,204,068.30

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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.