Home / 15,317,180.97-21,137,345.66-8,348,078.57

Finding the Fourth Proportional to 15,317,180.97, 21,137,345.66 and 8,348,078.57

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Solution

The fourth proportional to 15,317,180.97, 21,137,345.66 and 8,348,078.57 is: 11,520,150.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317,180.97 : 21,137,345.66 = 8,348,078.57 : x
  2. Step 2: Convert to fraction form
    15,317,180.97/21,137,345.66 = 8,348,078.57/x
  3. Step 3: Cross multiply
    15,317,180.97x = 21,137,345.66 × 8,348,078.57
  4. Step 4: Simplify right side
    15,317,180.97x = 176,456,222,400,985.66
  5. Step 5: Solve for x
    x = 176,456,222,400,985.66/15,317,180.97
  6. Step 6: Final answer
    x = 11,520,150.00

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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.