Home / 1,271,704,833.84-1,907,557,398.72-398,374,257.12

Finding the Fourth Proportional to 1,271,704,833.84, 1,907,557,398.72 and 398,374,257.12

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Solution

The fourth proportional to 1,271,704,833.84, 1,907,557,398.72 and 398,374,257.12 is: 597,561,432.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,704,833.84 : 1,907,557,398.72 = 398,374,257.12 : x
  2. Step 2: Convert to fraction form
    1,271,704,833.84/1,907,557,398.72 = 398,374,257.12/x
  3. Step 3: Cross multiply
    1,271,704,833.84x = 1,907,557,398.72 × 398,374,257.12
  4. Step 4: Simplify right side
    1,271,704,833.84x = 759,921,761,628,839,680
  5. Step 5: Solve for x
    x = 759,921,761,628,839,680/1,271,704,833.84
  6. Step 6: Final answer
    x = 597,561,432.03

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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.