Home / 10,631,999.20-15,947,998.80-9,810,853.60

Finding the Fourth Proportional to 10,631,999.20, 15,947,998.80 and 9,810,853.60

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Solution

The fourth proportional to 10,631,999.20, 15,947,998.80 and 9,810,853.60 is: 14,716,280.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,631,999.20 : 15,947,998.80 = 9,810,853.60 : x
  2. Step 2: Convert to fraction form
    10,631,999.20/15,947,998.80 = 9,810,853.60/x
  3. Step 3: Cross multiply
    10,631,999.20x = 15,947,998.80 × 9,810,853.60
  4. Step 4: Simplify right side
    10,631,999.20x = 156,463,481,439,775.69
  5. Step 5: Solve for x
    x = 156,463,481,439,775.69/10,631,999.20
  6. Step 6: Final answer
    x = 14,716,280.40

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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.