Home / 680,619,654.49-1,020,323,793.89-266,002,187.53

Finding the Fourth Proportional to 680,619,654.49, 1,020,323,793.89 and 266,002,187.53

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Solution

The fourth proportional to 680,619,654.49, 1,020,323,793.89 and 266,002,187.53 is: 398,766,564.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,619,654.49 : 1,020,323,793.89 = 266,002,187.53 : x
  2. Step 2: Convert to fraction form
    680,619,654.49/1,020,323,793.89 = 266,002,187.53/x
  3. Step 3: Cross multiply
    680,619,654.49x = 1,020,323,793.89 × 266,002,187.53
  4. Step 4: Simplify right side
    680,619,654.49x = 271,408,361,161,763,072
  5. Step 5: Solve for x
    x = 271,408,361,161,763,072/680,619,654.49
  6. Step 6: Final answer
    x = 398,766,564.22

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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.