Home / 357,418,505.85-493,095,704.34-206,683,308.89

Finding the Fourth Proportional to 357,418,505.85, 493,095,704.34 and 206,683,308.89

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Solution

The fourth proportional to 357,418,505.85, 493,095,704.34 and 206,683,308.89 is: 285,140,948.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,418,505.85 : 493,095,704.34 = 206,683,308.89 : x
  2. Step 2: Convert to fraction form
    357,418,505.85/493,095,704.34 = 206,683,308.89/x
  3. Step 3: Cross multiply
    357,418,505.85x = 493,095,704.34 × 206,683,308.89
  4. Step 4: Simplify right side
    357,418,505.85x = 101,914,651,771,431,392
  5. Step 5: Solve for x
    x = 101,914,651,771,431,392/357,418,505.85
  6. Step 6: Final answer
    x = 285,140,948.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.