Home / 81,466,358.40-122,040,105.30-49,021,885.35

Finding the Fourth Proportional to 81,466,358.40, 122,040,105.30 and 49,021,885.35

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Solution

The fourth proportional to 81,466,358.40, 122,040,105.30 and 49,021,885.35 is: 73,436,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,466,358.40 : 122,040,105.30 = 49,021,885.35 : x
  2. Step 2: Convert to fraction form
    81,466,358.40/122,040,105.30 = 49,021,885.35/x
  3. Step 3: Cross multiply
    81,466,358.40x = 122,040,105.30 × 49,021,885.35
  4. Step 4: Simplify right side
    81,466,358.40x = 5,982,636,050,118,527
  5. Step 5: Solve for x
    x = 5,982,636,050,118,527/81,466,358.40
  6. Step 6: Final answer
    x = 73,436,890.61

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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.