Home / 12,458,464.40-18,687,696.60-7,083,693.20

Finding the Fourth Proportional to 12,458,464.40, 18,687,696.60 and 7,083,693.20

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Solution

The fourth proportional to 12,458,464.40, 18,687,696.60 and 7,083,693.20 is: 10,625,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,464.40 : 18,687,696.60 = 7,083,693.20 : x
  2. Step 2: Convert to fraction form
    12,458,464.40/18,687,696.60 = 7,083,693.20/x
  3. Step 3: Cross multiply
    12,458,464.40x = 18,687,696.60 × 7,083,693.20
  4. Step 4: Simplify right side
    12,458,464.40x = 132,377,909,329,083.14
  5. Step 5: Solve for x
    x = 132,377,909,329,083.14/12,458,464.40
  6. Step 6: Final answer
    x = 10,625,539.80

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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.