Home / 5,211,905.40-7,817,469.30-2,178,487.80

Finding the Fourth Proportional to 5,211,905.40, 7,817,469.30 and 2,178,487.80

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Solution

The fourth proportional to 5,211,905.40, 7,817,469.30 and 2,178,487.80 is: 3,267,569.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211,905.40 : 7,817,469.30 = 2,178,487.80 : x
  2. Step 2: Convert to fraction form
    5,211,905.40/7,817,469.30 = 2,178,487.80/x
  3. Step 3: Cross multiply
    5,211,905.40x = 7,817,469.30 × 2,178,487.80
  4. Step 4: Simplify right side
    5,211,905.40x = 17,030,261,496,924.54
  5. Step 5: Solve for x
    x = 17,030,261,496,924.54/5,211,905.40
  6. Step 6: Final answer
    x = 3,267,569.19

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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.