Home / 18,788,008.60-28,165,610.40-7,281,326.80

Finding the Fourth Proportional to 18,788,008.60, 28,165,610.40 and 7,281,326.80

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Solution

The fourth proportional to 18,788,008.60, 28,165,610.40 and 7,281,326.80 is: 10,915,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788,008.60 : 28,165,610.40 = 7,281,326.80 : x
  2. Step 2: Convert to fraction form
    18,788,008.60/28,165,610.40 = 7,281,326.80/x
  3. Step 3: Cross multiply
    18,788,008.60x = 28,165,610.40 × 7,281,326.80
  4. Step 4: Simplify right side
    18,788,008.60x = 205,083,013,843,878.72
  5. Step 5: Solve for x
    x = 205,083,013,843,878.72/18,788,008.60
  6. Step 6: Final answer
    x = 10,915,633.38

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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.