Home / 862,721,458.80-1,294,082,188.20-658,648,114.80

Finding the Fourth Proportional to 862,721,458.80, 1,294,082,188.20 and 658,648,114.80

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Solution

The fourth proportional to 862,721,458.80, 1,294,082,188.20 and 658,648,114.80 is: 987,972,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,721,458.80 : 1,294,082,188.20 = 658,648,114.80 : x
  2. Step 2: Convert to fraction form
    862,721,458.80/1,294,082,188.20 = 658,648,114.80/x
  3. Step 3: Cross multiply
    862,721,458.80x = 1,294,082,188.20 × 658,648,114.80
  4. Step 4: Simplify right side
    862,721,458.80x = 852,344,793,654,188,800
  5. Step 5: Solve for x
    x = 852,344,793,654,188,800/862,721,458.80
  6. Step 6: Final answer
    x = 987,972,172.20

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Double scale
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1.5x scale

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.