Home / 79,965,113.13-119,947,669.65-19,380,839.13

Finding the Fourth Proportional to 79,965,113.13, 119,947,669.65 and 19,380,839.13

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Solution

The fourth proportional to 79,965,113.13, 119,947,669.65 and 19,380,839.13 is: 29,071,258.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,965,113.13 : 119,947,669.65 = 19,380,839.13 : x
  2. Step 2: Convert to fraction form
    79,965,113.13/119,947,669.65 = 19,380,839.13/x
  3. Step 3: Cross multiply
    79,965,113.13x = 119,947,669.65 × 19,380,839.13
  4. Step 4: Simplify right side
    79,965,113.13x = 2,324,686,489,505,033.50
  5. Step 5: Solve for x
    x = 2,324,686,489,505,033.50/79,965,113.13
  6. Step 6: Final answer
    x = 29,071,258.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.