Home / 18,820,636.20-28,167,968.70-13,151,932.20

Finding the Fourth Proportional to 18,820,636.20, 28,167,968.70 and 13,151,932.20

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Solution

The fourth proportional to 18,820,636.20, 28,167,968.70 and 13,151,932.20 is: 19,683,883.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820,636.20 : 28,167,968.70 = 13,151,932.20 : x
  2. Step 2: Convert to fraction form
    18,820,636.20/28,167,968.70 = 13,151,932.20/x
  3. Step 3: Cross multiply
    18,820,636.20x = 28,167,968.70 × 13,151,932.20
  4. Step 4: Simplify right side
    18,820,636.20x = 370,463,214,554,122.12
  5. Step 5: Solve for x
    x = 370,463,214,554,122.12/18,820,636.20
  6. Step 6: Final answer
    x = 19,683,883.72

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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.