Home / 208,752,859.40-313,127,295.29-126,894,338.78

Finding the Fourth Proportional to 208,752,859.40, 313,127,295.29 and 126,894,338.78

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Solution

The fourth proportional to 208,752,859.40, 313,127,295.29 and 126,894,338.78 is: 190,340,296.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,752,859.40 : 313,127,295.29 = 126,894,338.78 : x
  2. Step 2: Convert to fraction form
    208,752,859.40/313,127,295.29 = 126,894,338.78/x
  3. Step 3: Cross multiply
    208,752,859.40x = 313,127,295.29 × 126,894,338.78
  4. Step 4: Simplify right side
    208,752,859.40x = 39,734,081,089,942,704
  5. Step 5: Solve for x
    x = 39,734,081,089,942,704/208,752,859.40
  6. Step 6: Final answer
    x = 190,340,296.19

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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.