Home / 1,328,713,049.60-1,993,059,076.80-346,137,689.60

Finding the Fourth Proportional to 1,328,713,049.60, 1,993,059,076.80 and 346,137,689.60

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Solution

The fourth proportional to 1,328,713,049.60, 1,993,059,076.80 and 346,137,689.60 is: 519,203,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,713,049.60 : 1,993,059,076.80 = 346,137,689.60 : x
  2. Step 2: Convert to fraction form
    1,328,713,049.60/1,993,059,076.80 = 346,137,689.60/x
  3. Step 3: Cross multiply
    1,328,713,049.60x = 1,993,059,076.80 × 346,137,689.60
  4. Step 4: Simplify right side
    1,328,713,049.60x = 689,872,864,079,860,992
  5. Step 5: Solve for x
    x = 689,872,864,079,860,992/1,328,713,049.60
  6. Step 6: Final answer
    x = 519,203,799.71

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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.