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Finding the Fourth Proportional to 658,600,221.69, 988,007,757.98 and 270,318,842.01

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Solution

The fourth proportional to 658,600,221.69, 988,007,757.98 and 270,318,842.01 is: 405,522,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,600,221.69 : 988,007,757.98 = 270,318,842.01 : x
  2. Step 2: Convert to fraction form
    658,600,221.69/988,007,757.98 = 270,318,842.01/x
  3. Step 3: Cross multiply
    658,600,221.69x = 988,007,757.98 × 270,318,842.01
  4. Step 4: Simplify right side
    658,600,221.69x = 267,077,113,032,698,336
  5. Step 5: Solve for x
    x = 267,077,113,032,698,336/658,600,221.69
  6. Step 6: Final answer
    x = 405,522,355.20

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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.