Home / 82,218,963.84-123,288,089.42-40,671,836.75

Finding the Fourth Proportional to 82,218,963.84, 123,288,089.42 and 40,671,836.75

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Solution

The fourth proportional to 82,218,963.84, 123,288,089.42 and 40,671,836.75 is: 60,987,791.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,218,963.84 : 123,288,089.42 = 40,671,836.75 : x
  2. Step 2: Convert to fraction form
    82,218,963.84/123,288,089.42 = 40,671,836.75/x
  3. Step 3: Cross multiply
    82,218,963.84x = 123,288,089.42 × 40,671,836.75
  4. Step 4: Simplify right side
    82,218,963.84x = 5,014,353,045,289,842
  5. Step 5: Solve for x
    x = 5,014,353,045,289,842/82,218,963.84
  6. Step 6: Final answer
    x = 60,987,791.76

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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.