Home / 1,988,329,946.97-2,982,801,376.14-677,925,543.78

Finding the Fourth Proportional to 1,988,329,946.97, 2,982,801,376.14 and 677,925,543.78

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Solution

The fourth proportional to 1,988,329,946.97, 2,982,801,376.14 and 677,925,543.78 is: 1,016,992,802.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,329,946.97 : 2,982,801,376.14 = 677,925,543.78 : x
  2. Step 2: Convert to fraction form
    1,988,329,946.97/2,982,801,376.14 = 677,925,543.78/x
  3. Step 3: Cross multiply
    1,988,329,946.97x = 2,982,801,376.14 × 677,925,543.78
  4. Step 4: Simplify right side
    1,988,329,946.97x = 2,022,117,244,907,441,664
  5. Step 5: Solve for x
    x = 2,022,117,244,907,441,664/1,988,329,946.97
  6. Step 6: Final answer
    x = 1,016,992,802.42

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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.