Home / 209,077,374.80-313,616,062.20-127,448,037.20

Finding the Fourth Proportional to 209,077,374.80, 313,616,062.20 and 127,448,037.20

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Solution

The fourth proportional to 209,077,374.80, 313,616,062.20 and 127,448,037.20 is: 191,172,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,077,374.80 : 313,616,062.20 = 127,448,037.20 : x
  2. Step 2: Convert to fraction form
    209,077,374.80/313,616,062.20 = 127,448,037.20/x
  3. Step 3: Cross multiply
    209,077,374.80x = 313,616,062.20 × 127,448,037.20
  4. Step 4: Simplify right side
    209,077,374.80x = 39,969,751,561,783,112
  5. Step 5: Solve for x
    x = 39,969,751,561,783,112/209,077,374.80
  6. Step 6: Final answer
    x = 191,172,055.80

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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.