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Finding the Fourth Proportional to 18,441,928.80, 27,662,893.20 and 9,372,002.40

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Solution

The fourth proportional to 18,441,928.80, 27,662,893.20 and 9,372,002.40 is: 14,058,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441,928.80 : 27,662,893.20 = 9,372,002.40 : x
  2. Step 2: Convert to fraction form
    18,441,928.80/27,662,893.20 = 9,372,002.40/x
  3. Step 3: Cross multiply
    18,441,928.80x = 27,662,893.20 × 9,372,002.40
  4. Step 4: Simplify right side
    18,441,928.80x = 259,256,701,461,343.69
  5. Step 5: Solve for x
    x = 259,256,701,461,343.69/18,441,928.80
  6. Step 6: Final answer
    x = 14,058,003.60

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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.