Home / 500,389,078.92-749,929,926.48-279,051,586.08

Finding the Fourth Proportional to 500,389,078.92, 749,929,926.48 and 279,051,586.08

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Solution

The fourth proportional to 500,389,078.92, 749,929,926.48 and 279,051,586.08 is: 418,212,835.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,389,078.92 : 749,929,926.48 = 279,051,586.08 : x
  2. Step 2: Convert to fraction form
    500,389,078.92/749,929,926.48 = 279,051,586.08/x
  3. Step 3: Cross multiply
    500,389,078.92x = 749,929,926.48 × 279,051,586.08
  4. Step 4: Simplify right side
    500,389,078.92x = 209,269,135,433,101,792
  5. Step 5: Solve for x
    x = 209,269,135,433,101,792/500,389,078.92
  6. Step 6: Final answer
    x = 418,212,835.27

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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.