Home / 2,213,754,976.13-3,320,638,767.87-639,990,397.35

Finding the Fourth Proportional to 2,213,754,976.13, 3,320,638,767.87 and 639,990,397.35

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Solution

The fourth proportional to 2,213,754,976.13, 3,320,638,767.87 and 639,990,397.35 is: 959,987,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213,754,976.13 : 3,320,638,767.87 = 639,990,397.35 : x
  2. Step 2: Convert to fraction form
    2,213,754,976.13/3,320,638,767.87 = 639,990,397.35/x
  3. Step 3: Cross multiply
    2,213,754,976.13x = 3,320,638,767.87 × 639,990,397.35
  4. Step 4: Simplify right side
    2,213,754,976.13x = 2,125,176,924,504,935,680
  5. Step 5: Solve for x
    x = 2,125,176,924,504,935,680/2,213,754,976.13
  6. Step 6: Final answer
    x = 959,987,418.40

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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.