Home / 82,021,486.41-122,729,557.20-49,252,012.42

Finding the Fourth Proportional to 82,021,486.41, 122,729,557.20 and 49,252,012.42

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Solution

The fourth proportional to 82,021,486.41, 122,729,557.20 and 49,252,012.42 is: 73,696,270.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,021,486.41 : 122,729,557.20 = 49,252,012.42 : x
  2. Step 2: Convert to fraction form
    82,021,486.41/122,729,557.20 = 49,252,012.42/x
  3. Step 3: Cross multiply
    82,021,486.41x = 122,729,557.20 × 49,252,012.42
  4. Step 4: Simplify right side
    82,021,486.41x = 6,044,677,675,168,753
  5. Step 5: Solve for x
    x = 6,044,677,675,168,753/82,021,486.41
  6. Step 6: Final answer
    x = 73,696,270.82

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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.