Home / 126,768,390.09-190,165,428.30-43,759,323.40

Finding the Fourth Proportional to 126,768,390.09, 190,165,428.30 and 43,759,323.40

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Solution

The fourth proportional to 126,768,390.09, 190,165,428.30 and 43,759,323.40 is: 65,643,418.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,768,390.09 : 190,165,428.30 = 43,759,323.40 : x
  2. Step 2: Convert to fraction form
    126,768,390.09/190,165,428.30 = 43,759,323.40/x
  3. Step 3: Cross multiply
    126,768,390.09x = 190,165,428.30 × 43,759,323.40
  4. Step 4: Simplify right side
    126,768,390.09x = 8,321,510,475,309,589
  5. Step 5: Solve for x
    x = 8,321,510,475,309,589/126,768,390.09
  6. Step 6: Final answer
    x = 65,643,418.44

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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.