Home / 403,353,732.40-605,030,598.60-394,395,780.40

Finding the Fourth Proportional to 403,353,732.40, 605,030,598.60 and 394,395,780.40

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Solution

The fourth proportional to 403,353,732.40, 605,030,598.60 and 394,395,780.40 is: 591,593,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,353,732.40 : 605,030,598.60 = 394,395,780.40 : x
  2. Step 2: Convert to fraction form
    403,353,732.40/605,030,598.60 = 394,395,780.40/x
  3. Step 3: Cross multiply
    403,353,732.40x = 605,030,598.60 × 394,395,780.40
  4. Step 4: Simplify right side
    403,353,732.40x = 238,621,515,100,726,144
  5. Step 5: Solve for x
    x = 238,621,515,100,726,144/403,353,732.40
  6. Step 6: Final answer
    x = 591,593,670.60

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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.