Home / 261,467,999.20-392,201,998.80-159,431,327.20

Finding the Fourth Proportional to 261,467,999.20, 392,201,998.80 and 159,431,327.20

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Solution

The fourth proportional to 261,467,999.20, 392,201,998.80 and 159,431,327.20 is: 239,146,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,467,999.20 : 392,201,998.80 = 159,431,327.20 : x
  2. Step 2: Convert to fraction form
    261,467,999.20/392,201,998.80 = 159,431,327.20/x
  3. Step 3: Cross multiply
    261,467,999.20x = 392,201,998.80 × 159,431,327.20
  4. Step 4: Simplify right side
    261,467,999.20x = 62,529,285,199,176,808
  5. Step 5: Solve for x
    x = 62,529,285,199,176,808/261,467,999.20
  6. Step 6: Final answer
    x = 239,146,990.80

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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.