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Finding the Fourth Proportional to 13,209,324.80, 19,795,324.80 and 9,770,777.60

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Solution

The fourth proportional to 13,209,324.80, 19,795,324.80 and 9,770,777.60 is: 14,642,362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,324.80 : 19,795,324.80 = 9,770,777.60 : x
  2. Step 2: Convert to fraction form
    13,209,324.80/19,795,324.80 = 9,770,777.60/x
  3. Step 3: Cross multiply
    13,209,324.80x = 19,795,324.80 × 9,770,777.60
  4. Step 4: Simplify right side
    13,209,324.80x = 193,415,716,140,564.47
  5. Step 5: Solve for x
    x = 193,415,716,140,564.47/13,209,324.80
  6. Step 6: Final answer
    x = 14,642,362.05

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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.