Home / 521,597,999.20-782,396,998.80-467,178,440.80

Finding the Fourth Proportional to 521,597,999.20, 782,396,998.80 and 467,178,440.80

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Solution

The fourth proportional to 521,597,999.20, 782,396,998.80 and 467,178,440.80 is: 700,767,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,597,999.20 : 782,396,998.80 = 467,178,440.80 : x
  2. Step 2: Convert to fraction form
    521,597,999.20/782,396,998.80 = 467,178,440.80/x
  3. Step 3: Cross multiply
    521,597,999.20x = 782,396,998.80 × 467,178,440.80
  4. Step 4: Simplify right side
    521,597,999.20x = 365,519,009,985,983,488
  5. Step 5: Solve for x
    x = 365,519,009,985,983,488/521,597,999.20
  6. Step 6: Final answer
    x = 700,767,661.20

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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.