Home / 994,085,743.50-1,491,343,859.79-380,669,991.12

Finding the Fourth Proportional to 994,085,743.50, 1,491,343,859.79 and 380,669,991.12

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Solution

The fourth proportional to 994,085,743.50, 1,491,343,859.79 and 380,669,991.12 is: 571,087,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,085,743.50 : 1,491,343,859.79 = 380,669,991.12 : x
  2. Step 2: Convert to fraction form
    994,085,743.50/1,491,343,859.79 = 380,669,991.12/x
  3. Step 3: Cross multiply
    994,085,743.50x = 1,491,343,859.79 × 380,669,991.12
  4. Step 4: Simplify right side
    994,085,743.50x = 567,709,853,863,125,824
  5. Step 5: Solve for x
    x = 567,709,853,863,125,824/994,085,743.50
  6. Step 6: Final answer
    x = 571,087,411.30

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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.