Home / 366,774,787,215.86-550,413,487,178.45-128,009,436,219.20

Finding the Fourth Proportional to 366,774,787,215.86, 550,413,487,178.45 and 128,009,436,219.20

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Solution

The fourth proportional to 366,774,787,215.86, 550,413,487,178.45 and 128,009,436,219.20 is: 192,101,863,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,774,787,215.86 : 550,413,487,178.45 = 128,009,436,219.20 : x
  2. Step 2: Convert to fraction form
    366,774,787,215.86/550,413,487,178.45 = 128,009,436,219.20/x
  3. Step 3: Cross multiply
    366,774,787,215.86x = 550,413,487,178.45 × 128,009,436,219.20
  4. Step 4: Simplify right side
    366,774,787,215.86x = 70,458,120,181,157,246,009,344
  5. Step 5: Solve for x
    x = 70,458,120,181,157,246,009,344/366,774,787,215.86
  6. Step 6: Final answer
    x = 192,101,863,696.78

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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.