Home / 20,658,281.67-30,991,205.21-8,521,123.95

Finding the Fourth Proportional to 20,658,281.67, 30,991,205.21 and 8,521,123.95

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Solution

The fourth proportional to 20,658,281.67, 30,991,205.21 and 8,521,123.95 is: 12,783,246.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658,281.67 : 30,991,205.21 = 8,521,123.95 : x
  2. Step 2: Convert to fraction form
    20,658,281.67/30,991,205.21 = 8,521,123.95/x
  3. Step 3: Cross multiply
    20,658,281.67x = 30,991,205.21 × 8,521,123.95
  4. Step 4: Simplify right side
    20,658,281.67x = 264,079,900,954,295.75
  5. Step 5: Solve for x
    x = 264,079,900,954,295.75/20,658,281.67
  6. Step 6: Final answer
    x = 12,783,246.21

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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.