Home / 1,085,987,042.98-1,628,995,698.17-309,632,703.70

Finding the Fourth Proportional to 1,085,987,042.98, 1,628,995,698.17 and 309,632,703.70

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Solution

The fourth proportional to 1,085,987,042.98, 1,628,995,698.17 and 309,632,703.70 is: 464,453,370.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,987,042.98 : 1,628,995,698.17 = 309,632,703.70 : x
  2. Step 2: Convert to fraction form
    1,085,987,042.98/1,628,995,698.17 = 309,632,703.70/x
  3. Step 3: Cross multiply
    1,085,987,042.98x = 1,628,995,698.17 × 309,632,703.70
  4. Step 4: Simplify right side
    1,085,987,042.98x = 504,390,342,334,690,240
  5. Step 5: Solve for x
    x = 504,390,342,334,690,240/1,085,987,042.98
  6. Step 6: Final answer
    x = 464,453,370.41

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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.