Home / 640,446,718.27-960,481,619.97-290,490,326.59

Finding the Fourth Proportional to 640,446,718.27, 960,481,619.97 and 290,490,326.59

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Solution

The fourth proportional to 640,446,718.27, 960,481,619.97 and 290,490,326.59 is: 435,650,010.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,446,718.27 : 960,481,619.97 = 290,490,326.59 : x
  2. Step 2: Convert to fraction form
    640,446,718.27/960,481,619.97 = 290,490,326.59/x
  3. Step 3: Cross multiply
    640,446,718.27x = 960,481,619.97 × 290,490,326.59
  4. Step 4: Simplify right side
    640,446,718.27x = 279,010,619,468,777,536
  5. Step 5: Solve for x
    x = 279,010,619,468,777,536/640,446,718.27
  6. Step 6: Final answer
    x = 435,650,010.39

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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.