Home / 13,821,660.40-20,732,490.60-6,631,970.80

Finding the Fourth Proportional to 13,821,660.40, 20,732,490.60 and 6,631,970.80

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Solution

The fourth proportional to 13,821,660.40, 20,732,490.60 and 6,631,970.80 is: 9,947,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821,660.40 : 20,732,490.60 = 6,631,970.80 : x
  2. Step 2: Convert to fraction form
    13,821,660.40/20,732,490.60 = 6,631,970.80/x
  3. Step 3: Cross multiply
    13,821,660.40x = 20,732,490.60 × 6,631,970.80
  4. Step 4: Simplify right side
    13,821,660.40x = 137,497,272,270,474.48
  5. Step 5: Solve for x
    x = 137,497,272,270,474.48/13,821,660.40
  6. Step 6: Final answer
    x = 9,947,956.20

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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.