Home / 320,520,040.20-480,780,060.30-199,587,688.20

Finding the Fourth Proportional to 320,520,040.20, 480,780,060.30 and 199,587,688.20

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Solution

The fourth proportional to 320,520,040.20, 480,780,060.30 and 199,587,688.20 is: 299,381,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,520,040.20 : 480,780,060.30 = 199,587,688.20 : x
  2. Step 2: Convert to fraction form
    320,520,040.20/480,780,060.30 = 199,587,688.20/x
  3. Step 3: Cross multiply
    320,520,040.20x = 480,780,060.30 × 199,587,688.20
  4. Step 4: Simplify right side
    320,520,040.20x = 95,957,780,767,933,600
  5. Step 5: Solve for x
    x = 95,957,780,767,933,600/320,520,040.20
  6. Step 6: Final answer
    x = 299,381,532.30

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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.