Home / 1,319,933,107.80-1,981,411,316.10-774,981,696.60

Finding the Fourth Proportional to 1,319,933,107.80, 1,981,411,316.10 and 774,981,696.60

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Solution

The fourth proportional to 1,319,933,107.80, 1,981,411,316.10 and 774,981,696.60 is: 1,163,360,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,933,107.80 : 1,981,411,316.10 = 774,981,696.60 : x
  2. Step 2: Convert to fraction form
    1,319,933,107.80/1,981,411,316.10 = 774,981,696.60/x
  3. Step 3: Cross multiply
    1,319,933,107.80x = 1,981,411,316.10 × 774,981,696.60
  4. Step 4: Simplify right side
    1,319,933,107.80x = 1,535,557,503,413,616,896
  5. Step 5: Solve for x
    x = 1,535,557,503,413,616,896/1,319,933,107.80
  6. Step 6: Final answer
    x = 1,163,360,093.28

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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.