Home / 76,387,963.78-114,580,811.64-18,880,231.78

Finding the Fourth Proportional to 76,387,963.78, 114,580,811.64 and 18,880,231.78

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Solution

The fourth proportional to 76,387,963.78, 114,580,811.64 and 18,880,231.78 is: 28,320,067.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,387,963.78 : 114,580,811.64 = 18,880,231.78 : x
  2. Step 2: Convert to fraction form
    76,387,963.78/114,580,811.64 = 18,880,231.78/x
  3. Step 3: Cross multiply
    76,387,963.78x = 114,580,811.64 × 18,880,231.78
  4. Step 4: Simplify right side
    76,387,963.78x = 2,163,312,281,303,722
  5. Step 5: Solve for x
    x = 2,163,312,281,303,722/76,387,963.78
  6. Step 6: Final answer
    x = 28,320,067.38

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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.