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Finding the Fourth Proportional to 637,975,308.30, 956,962,962.45 and 228,978,314.70

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Solution

The fourth proportional to 637,975,308.30, 956,962,962.45 and 228,978,314.70 is: 343,467,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,975,308.30 : 956,962,962.45 = 228,978,314.70 : x
  2. Step 2: Convert to fraction form
    637,975,308.30/956,962,962.45 = 228,978,314.70/x
  3. Step 3: Cross multiply
    637,975,308.30x = 956,962,962.45 × 228,978,314.70
  4. Step 4: Simplify right side
    637,975,308.30x = 219,123,766,372,120,384
  5. Step 5: Solve for x
    x = 219,123,766,372,120,384/637,975,308.30
  6. Step 6: Final answer
    x = 343,467,472.05

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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.