Home / 8,679,558.40-13,021,411.20-4,188,140.80

Finding the Fourth Proportional to 8,679,558.40, 13,021,411.20 and 4,188,140.80

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Solution

The fourth proportional to 8,679,558.40, 13,021,411.20 and 4,188,140.80 is: 6,283,211.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679,558.40 : 13,021,411.20 = 4,188,140.80 : x
  2. Step 2: Convert to fraction form
    8,679,558.40/13,021,411.20 = 4,188,140.80/x
  3. Step 3: Cross multiply
    8,679,558.40x = 13,021,411.20 × 4,188,140.80
  4. Step 4: Simplify right side
    8,679,558.40x = 54,535,503,520,296.95
  5. Step 5: Solve for x
    x = 54,535,503,520,296.95/8,679,558.40
  6. Step 6: Final answer
    x = 6,283,211.77

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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.