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Finding the Fourth Proportional to 72,393,402.60, 108,590,103.90 and 59,638,818.60

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Solution

The fourth proportional to 72,393,402.60, 108,590,103.90 and 59,638,818.60 is: 89,458,227.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,393,402.60 : 108,590,103.90 = 59,638,818.60 : x
  2. Step 2: Convert to fraction form
    72,393,402.60/108,590,103.90 = 59,638,818.60/x
  3. Step 3: Cross multiply
    72,393,402.60x = 108,590,103.90 × 59,638,818.60
  4. Step 4: Simplify right side
    72,393,402.60x = 6,476,185,508,247,253
  5. Step 5: Solve for x
    x = 6,476,185,508,247,253/72,393,402.60
  6. Step 6: Final answer
    x = 89,458,227.90

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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.