Home / 27,819,647.56-38,346,769.92-21,929,683.06

Finding the Fourth Proportional to 27,819,647.56, 38,346,769.92 and 21,929,683.06

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Solution

The fourth proportional to 27,819,647.56, 38,346,769.92 and 21,929,683.06 is: 30,228,007.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819,647.56 : 38,346,769.92 = 21,929,683.06 : x
  2. Step 2: Convert to fraction form
    27,819,647.56/38,346,769.92 = 21,929,683.06/x
  3. Step 3: Cross multiply
    27,819,647.56x = 38,346,769.92 × 21,929,683.06
  4. Step 4: Simplify right side
    27,819,647.56x = 840,932,510,720,341.50
  5. Step 5: Solve for x
    x = 840,932,510,720,341.50/27,819,647.56
  6. Step 6: Final answer
    x = 30,228,007.34

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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.