Home / 39,290,821.58-54,222,967.41-21,887,162.12

Finding the Fourth Proportional to 39,290,821.58, 54,222,967.41 and 21,887,162.12

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Solution

The fourth proportional to 39,290,821.58, 54,222,967.41 and 21,887,162.12 is: 30,205,193.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,290,821.58 : 54,222,967.41 = 21,887,162.12 : x
  2. Step 2: Convert to fraction form
    39,290,821.58/54,222,967.41 = 21,887,162.12/x
  3. Step 3: Cross multiply
    39,290,821.58x = 54,222,967.41 × 21,887,162.12
  4. Step 4: Simplify right side
    39,290,821.58x = 1,186,786,878,330,146.50
  5. Step 5: Solve for x
    x = 1,186,786,878,330,146.50/39,290,821.58
  6. Step 6: Final answer
    x = 30,205,193.75

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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.