Home / 403,478,262.80-605,217,394.20-265,728,755.60

Finding the Fourth Proportional to 403,478,262.80, 605,217,394.20 and 265,728,755.60

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Solution

The fourth proportional to 403,478,262.80, 605,217,394.20 and 265,728,755.60 is: 398,593,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,478,262.80 : 605,217,394.20 = 265,728,755.60 : x
  2. Step 2: Convert to fraction form
    403,478,262.80/605,217,394.20 = 265,728,755.60/x
  3. Step 3: Cross multiply
    403,478,262.80x = 605,217,394.20 × 265,728,755.60
  4. Step 4: Simplify right side
    403,478,262.80x = 160,823,665,028,240,672
  5. Step 5: Solve for x
    x = 160,823,665,028,240,672/403,478,262.80
  6. Step 6: Final answer
    x = 398,593,133.40

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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.