Home / 7,201,974,324.72-9,938,842,234.22-3,942,965,621.06

Finding the Fourth Proportional to 7,201,974,324.72, 9,938,842,234.22 and 3,942,965,621.06

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Solution

The fourth proportional to 7,201,974,324.72, 9,938,842,234.22 and 3,942,965,621.06 is: 5,441,356,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201,974,324.72 : 9,938,842,234.22 = 3,942,965,621.06 : x
  2. Step 2: Convert to fraction form
    7,201,974,324.72/9,938,842,234.22 = 3,942,965,621.06/x
  3. Step 3: Cross multiply
    7,201,974,324.72x = 9,938,842,234.22 × 3,942,965,621.06
  4. Step 4: Simplify right side
    7,201,974,324.72x = 39,188,513,242,668,613,632
  5. Step 5: Solve for x
    x = 39,188,513,242,668,613,632/7,201,974,324.72
  6. Step 6: Final answer
    x = 5,441,356,977.37

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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.