Home / 363,827,015.15-545,740,460.42-115,006,940.78

Finding the Fourth Proportional to 363,827,015.15, 545,740,460.42 and 115,006,940.78

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Solution

The fourth proportional to 363,827,015.15, 545,740,460.42 and 115,006,940.78 is: 172,510,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,827,015.15 : 545,740,460.42 = 115,006,940.78 : x
  2. Step 2: Convert to fraction form
    363,827,015.15/545,740,460.42 = 115,006,940.78/x
  3. Step 3: Cross multiply
    363,827,015.15x = 545,740,460.42 × 115,006,940.78
  4. Step 4: Simplify right side
    363,827,015.15x = 62,763,940,810,044,168
  5. Step 5: Solve for x
    x = 62,763,940,810,044,168/363,827,015.15
  6. Step 6: Final answer
    x = 172,510,391.47

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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.