Home / 81,673,417.35-122,510,126.03-36,239,804.55

Finding the Fourth Proportional to 81,673,417.35, 122,510,126.03 and 36,239,804.55

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Solution

The fourth proportional to 81,673,417.35, 122,510,126.03 and 36,239,804.55 is: 54,359,706.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,673,417.35 : 122,510,126.03 = 36,239,804.55 : x
  2. Step 2: Convert to fraction form
    81,673,417.35/122,510,126.03 = 36,239,804.55/x
  3. Step 3: Cross multiply
    81,673,417.35x = 122,510,126.03 × 36,239,804.55
  4. Step 4: Simplify right side
    81,673,417.35x = 4,439,743,022,541,868.50
  5. Step 5: Solve for x
    x = 4,439,743,022,541,868.50/81,673,417.35
  6. Step 6: Final answer
    x = 54,359,706.83

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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.