Home / 7,201,974,321.60-9,938,842,229.91-3,942,965,617.94

Finding the Fourth Proportional to 7,201,974,321.60, 9,938,842,229.91 and 3,942,965,617.94

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Solution

The fourth proportional to 7,201,974,321.60, 9,938,842,229.91 and 3,942,965,617.94 is: 5,441,356,973.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201,974,321.60 : 9,938,842,229.91 = 3,942,965,617.94 : x
  2. Step 2: Convert to fraction form
    7,201,974,321.60/9,938,842,229.91 = 3,942,965,617.94/x
  3. Step 3: Cross multiply
    7,201,974,321.60x = 9,938,842,229.91 × 3,942,965,617.94
  4. Step 4: Simplify right side
    7,201,974,321.60x = 39,188,513,194,615,554,048
  5. Step 5: Solve for x
    x = 39,188,513,194,615,554,048/7,201,974,321.60
  6. Step 6: Final answer
    x = 5,441,356,973.06

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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.