Home / 18,887,898.39-28,328,678.31-5,242,431.15

Finding the Fourth Proportional to 18,887,898.39, 28,328,678.31 and 5,242,431.15

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Solution

The fourth proportional to 18,887,898.39, 28,328,678.31 and 5,242,431.15 is: 7,862,767.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,898.39 : 28,328,678.31 = 5,242,431.15 : x
  2. Step 2: Convert to fraction form
    18,887,898.39/28,328,678.31 = 5,242,431.15/x
  3. Step 3: Cross multiply
    18,887,898.39x = 28,328,678.31 × 5,242,431.15
  4. Step 4: Simplify right side
    18,887,898.39x = 148,511,145,610,673.38
  5. Step 5: Solve for x
    x = 148,511,145,610,673.38/18,887,898.39
  6. Step 6: Final answer
    x = 7,862,767.08

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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.