Home / 298,951,007.40-448,426,511.10-257,339,177.10

Finding the Fourth Proportional to 298,951,007.40, 448,426,511.10 and 257,339,177.10

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Solution

The fourth proportional to 298,951,007.40, 448,426,511.10 and 257,339,177.10 is: 386,008,765.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,951,007.40 : 448,426,511.10 = 257,339,177.10 : x
  2. Step 2: Convert to fraction form
    298,951,007.40/448,426,511.10 = 257,339,177.10/x
  3. Step 3: Cross multiply
    298,951,007.40x = 448,426,511.10 × 257,339,177.10
  4. Step 4: Simplify right side
    298,951,007.40x = 115,397,709,356,298,016
  5. Step 5: Solve for x
    x = 115,397,709,356,298,016/298,951,007.40
  6. Step 6: Final answer
    x = 386,008,765.65

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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.