Home / 27,819,647.68-38,346,770-21,929,683.04

Finding the Fourth Proportional to 27,819,647.68, 38,346,770 and 21,929,683.04

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Solution

The fourth proportional to 27,819,647.68, 38,346,770 and 21,929,683.04 is: 30,228,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819,647.68 : 38,346,770 = 21,929,683.04 : x
  2. Step 2: Convert to fraction form
    27,819,647.68/38,346,770 = 21,929,683.04/x
  3. Step 3: Cross multiply
    27,819,647.68x = 38,346,770 × 21,929,683.04
  4. Step 4: Simplify right side
    27,819,647.68x = 840,932,511,707,780.75
  5. Step 5: Solve for x
    x = 840,932,511,707,780.75/27,819,647.68
  6. Step 6: Final answer
    x = 30,228,007.25

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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.