Home / 58,420,787.88-80,198,515-50,146,485.28

Finding the Fourth Proportional to 58,420,787.88, 80,198,515 and 50,146,485.28

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Solution

The fourth proportional to 58,420,787.88, 80,198,515 and 50,146,485.28 is: 68,839,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,420,787.88 : 80,198,515 = 50,146,485.28 : x
  2. Step 2: Convert to fraction form
    58,420,787.88/80,198,515 = 50,146,485.28/x
  3. Step 3: Cross multiply
    58,420,787.88x = 80,198,515 × 50,146,485.28
  4. Step 4: Simplify right side
    58,420,787.88x = 4,021,673,651,925,359.50
  5. Step 5: Solve for x
    x = 4,021,673,651,925,359.50/58,420,787.88
  6. Step 6: Final answer
    x = 68,839,770.87

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.