Home / 628,098,766.85-942,250,409.93-185,486,216.78

Finding the Fourth Proportional to 628,098,766.85, 942,250,409.93 and 185,486,216.78

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Solution

The fourth proportional to 628,098,766.85, 942,250,409.93 and 185,486,216.78 is: 278,259,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,098,766.85 : 942,250,409.93 = 185,486,216.78 : x
  2. Step 2: Convert to fraction form
    628,098,766.85/942,250,409.93 = 185,486,216.78/x
  3. Step 3: Cross multiply
    628,098,766.85x = 942,250,409.93 × 185,486,216.78
  4. Step 4: Simplify right side
    628,098,766.85x = 174,774,463,797,319,840
  5. Step 5: Solve for x
    x = 174,774,463,797,319,840/628,098,766.85
  6. Step 6: Final answer
    x = 278,259,523.85

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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.