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Finding the Fourth Proportional to 503,403,416.57, 694,731,630.03 and 305,173,266.37

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Solution

The fourth proportional to 503,403,416.57, 694,731,630.03 and 305,173,266.37 is: 421,160,273.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,403,416.57 : 694,731,630.03 = 305,173,266.37 : x
  2. Step 2: Convert to fraction form
    503,403,416.57/694,731,630.03 = 305,173,266.37/x
  3. Step 3: Cross multiply
    503,403,416.57x = 694,731,630.03 × 305,173,266.37
  4. Step 4: Simplify right side
    503,403,416.57x = 212,013,520,786,809,472
  5. Step 5: Solve for x
    x = 212,013,520,786,809,472/503,403,416.57
  6. Step 6: Final answer
    x = 421,160,273.86

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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.