Home / 664,301,569.20-996,452,353.80-638,792,401.20

Finding the Fourth Proportional to 664,301,569.20, 996,452,353.80 and 638,792,401.20

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Solution

The fourth proportional to 664,301,569.20, 996,452,353.80 and 638,792,401.20 is: 958,188,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,301,569.20 : 996,452,353.80 = 638,792,401.20 : x
  2. Step 2: Convert to fraction form
    664,301,569.20/996,452,353.80 = 638,792,401.20/x
  3. Step 3: Cross multiply
    664,301,569.20x = 996,452,353.80 × 638,792,401.20
  4. Step 4: Simplify right side
    664,301,569.20x = 636,526,191,765,293,952
  5. Step 5: Solve for x
    x = 636,526,191,765,293,952/664,301,569.20
  6. Step 6: Final answer
    x = 958,188,601.80

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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.