Home / 403,359,241.90-605,038,862.85-394,401,289.90

Finding the Fourth Proportional to 403,359,241.90, 605,038,862.85 and 394,401,289.90

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Solution

The fourth proportional to 403,359,241.90, 605,038,862.85 and 394,401,289.90 is: 591,601,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,359,241.90 : 605,038,862.85 = 394,401,289.90 : x
  2. Step 2: Convert to fraction form
    403,359,241.90/605,038,862.85 = 394,401,289.90/x
  3. Step 3: Cross multiply
    403,359,241.90x = 605,038,862.85 × 394,401,289.90
  4. Step 4: Simplify right side
    403,359,241.90x = 238,628,107,947,669,184
  5. Step 5: Solve for x
    x = 238,628,107,947,669,184/403,359,241.90
  6. Step 6: Final answer
    x = 591,601,934.85

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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.