Home / 18,671,072.40-28,006,608.60-7,307,744.40

Finding the Fourth Proportional to 18,671,072.40, 28,006,608.60 and 7,307,744.40

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Solution

The fourth proportional to 18,671,072.40, 28,006,608.60 and 7,307,744.40 is: 10,961,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671,072.40 : 28,006,608.60 = 7,307,744.40 : x
  2. Step 2: Convert to fraction form
    18,671,072.40/28,006,608.60 = 7,307,744.40/x
  3. Step 3: Cross multiply
    18,671,072.40x = 28,006,608.60 × 7,307,744.40
  4. Step 4: Simplify right side
    18,671,072.40x = 204,665,137,159,641.88
  5. Step 5: Solve for x
    x = 204,665,137,159,641.88/18,671,072.40
  6. Step 6: Final answer
    x = 10,961,616.60

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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.