Home / 12,209,708.80-18,298,816.80-9,355,673.80

Finding the Fourth Proportional to 12,209,708.80, 18,298,816.80 and 9,355,673.80

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Solution

The fourth proportional to 12,209,708.80, 18,298,816.80 and 9,355,673.80 is: 14,021,445.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209,708.80 : 18,298,816.80 = 9,355,673.80 : x
  2. Step 2: Convert to fraction form
    12,209,708.80/18,298,816.80 = 9,355,673.80/x
  3. Step 3: Cross multiply
    12,209,708.80x = 18,298,816.80 × 9,355,673.80
  4. Step 4: Simplify right side
    12,209,708.80x = 171,197,760,906,759.88
  5. Step 5: Solve for x
    x = 171,197,760,906,759.88/12,209,708.80
  6. Step 6: Final answer
    x = 14,021,445.04

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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.