Home / 2,631,792,515.63-3,947,658,338.90-639,845,857.58

Finding the Fourth Proportional to 2,631,792,515.63, 3,947,658,338.90 and 639,845,857.58

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Solution

The fourth proportional to 2,631,792,515.63, 3,947,658,338.90 and 639,845,857.58 is: 959,761,387.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,792,515.63 : 3,947,658,338.90 = 639,845,857.58 : x
  2. Step 2: Convert to fraction form
    2,631,792,515.63/3,947,658,338.90 = 639,845,857.58/x
  3. Step 3: Cross multiply
    2,631,792,515.63x = 3,947,658,338.90 × 639,845,857.58
  4. Step 4: Simplify right side
    2,631,792,515.63x = 2,525,892,835,268,234,240
  5. Step 5: Solve for x
    x = 2,525,892,835,268,234,240/2,631,792,515.63
  6. Step 6: Final answer
    x = 959,761,387.07

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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.