Home / 5,118,728.48-7,672,187.84-1,921,815.68

Finding the Fourth Proportional to 5,118,728.48, 7,672,187.84 and 1,921,815.68

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Solution

The fourth proportional to 5,118,728.48, 7,672,187.84 and 1,921,815.68 is: 2,880,506.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118,728.48 : 7,672,187.84 = 1,921,815.68 : x
  2. Step 2: Convert to fraction form
    5,118,728.48/7,672,187.84 = 1,921,815.68/x
  3. Step 3: Cross multiply
    5,118,728.48x = 7,672,187.84 × 1,921,815.68
  4. Step 4: Simplify right side
    5,118,728.48x = 14,744,530,890,817.33
  5. Step 5: Solve for x
    x = 14,744,530,890,817.33/5,118,728.48
  6. Step 6: Final answer
    x = 2,880,506.55

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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.