Home / 6,721,878.72-9,276,989.76-3,821,707.20

Finding the Fourth Proportional to 6,721,878.72, 9,276,989.76 and 3,821,707.20

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Solution

The fourth proportional to 6,721,878.72, 9,276,989.76 and 3,821,707.20 is: 5,274,409.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721,878.72 : 9,276,989.76 = 3,821,707.20 : x
  2. Step 2: Convert to fraction form
    6,721,878.72/9,276,989.76 = 3,821,707.20/x
  3. Step 3: Cross multiply
    6,721,878.72x = 9,276,989.76 × 3,821,707.20
  4. Step 4: Simplify right side
    6,721,878.72x = 35,453,938,560,118.27
  5. Step 5: Solve for x
    x = 35,453,938,560,118.27/6,721,878.72
  6. Step 6: Final answer
    x = 5,274,409.14

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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.