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Finding the Fourth Proportional to 64,638,512.70, 96,957,769.05 and 40,452,042.30

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Solution

The fourth proportional to 64,638,512.70, 96,957,769.05 and 40,452,042.30 is: 60,678,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,638,512.70 : 96,957,769.05 = 40,452,042.30 : x
  2. Step 2: Convert to fraction form
    64,638,512.70/96,957,769.05 = 40,452,042.30/x
  3. Step 3: Cross multiply
    64,638,512.70x = 96,957,769.05 × 40,452,042.30
  4. Step 4: Simplify right side
    64,638,512.70x = 3,922,139,774,924,230.50
  5. Step 5: Solve for x
    x = 3,922,139,774,924,230.50/64,638,512.70
  6. Step 6: Final answer
    x = 60,678,063.45

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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.