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Finding the Fourth Proportional to 270,903,818.69, 406,525,789.15 and 253,472,553.89

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Solution

The fourth proportional to 270,903,818.69, 406,525,789.15 and 253,472,553.89 is: 380,367,949.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,903,818.69 : 406,525,789.15 = 253,472,553.89 : x
  2. Step 2: Convert to fraction form
    270,903,818.69/406,525,789.15 = 253,472,553.89/x
  3. Step 3: Cross multiply
    270,903,818.69x = 406,525,789.15 × 253,472,553.89
  4. Step 4: Simplify right side
    270,903,818.69x = 103,043,129,994,698,144
  5. Step 5: Solve for x
    x = 103,043,129,994,698,144/270,903,818.69
  6. Step 6: Final answer
    x = 380,367,949.39

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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.