Home / 12,880,578.98-17,790,788.49-9,390,390.50

Finding the Fourth Proportional to 12,880,578.98, 17,790,788.49 and 9,390,390.50

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Solution

The fourth proportional to 12,880,578.98, 17,790,788.49 and 9,390,390.50 is: 12,970,104.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,578.98 : 17,790,788.49 = 9,390,390.50 : x
  2. Step 2: Convert to fraction form
    12,880,578.98/17,790,788.49 = 9,390,390.50/x
  3. Step 3: Cross multiply
    12,880,578.98x = 17,790,788.49 × 9,390,390.50
  4. Step 4: Simplify right side
    12,880,578.98x = 167,062,451,224,005.34
  5. Step 5: Solve for x
    x = 167,062,451,224,005.34/12,880,578.98
  6. Step 6: Final answer
    x = 12,970,104.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.