Home / 458,870,545.37-687,815,699.03-261,709,477.31

Finding the Fourth Proportional to 458,870,545.37, 687,815,699.03 and 261,709,477.31

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Solution

The fourth proportional to 458,870,545.37, 687,815,699.03 and 261,709,477.31 is: 392,284,684.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,870,545.37 : 687,815,699.03 = 261,709,477.31 : x
  2. Step 2: Convert to fraction form
    458,870,545.37/687,815,699.03 = 261,709,477.31/x
  3. Step 3: Cross multiply
    458,870,545.37x = 687,815,699.03 × 261,709,477.31
  4. Step 4: Simplify right side
    458,870,545.37x = 180,007,887,078,753,568
  5. Step 5: Solve for x
    x = 180,007,887,078,753,568/458,870,545.37
  6. Step 6: Final answer
    x = 392,284,684.42

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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.