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Finding the Fourth Proportional to 467,714,866.92, 644,781,125.56 and 318,844,945.88

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Solution

The fourth proportional to 467,714,866.92, 644,781,125.56 and 318,844,945.88 is: 439,552,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,714,866.92 : 644,781,125.56 = 318,844,945.88 : x
  2. Step 2: Convert to fraction form
    467,714,866.92/644,781,125.56 = 318,844,945.88/x
  3. Step 3: Cross multiply
    467,714,866.92x = 644,781,125.56 × 318,844,945.88
  4. Step 4: Simplify right side
    467,714,866.92x = 205,585,203,083,623,648
  5. Step 5: Solve for x
    x = 205,585,203,083,623,648/467,714,866.92
  6. Step 6: Final answer
    x = 439,552,423.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.