Home / 665,928,003.20-998,892,004.80-620,578,371.20

Finding the Fourth Proportional to 665,928,003.20, 998,892,004.80 and 620,578,371.20

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Solution

The fourth proportional to 665,928,003.20, 998,892,004.80 and 620,578,371.20 is: 930,867,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,928,003.20 : 998,892,004.80 = 620,578,371.20 : x
  2. Step 2: Convert to fraction form
    665,928,003.20/998,892,004.80 = 620,578,371.20/x
  3. Step 3: Cross multiply
    665,928,003.20x = 998,892,004.80 × 620,578,371.20
  4. Step 4: Simplify right side
    665,928,003.20x = 619,890,773,343,486,592
  5. Step 5: Solve for x
    x = 619,890,773,343,486,592/665,928,003.20
  6. Step 6: Final answer
    x = 930,867,556.80

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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.