Home / 628,098,765.85-942,250,408.43-185,486,215.78

Finding the Fourth Proportional to 628,098,765.85, 942,250,408.43 and 185,486,215.78

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Solution

The fourth proportional to 628,098,765.85, 942,250,408.43 and 185,486,215.78 is: 278,259,522.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,098,765.85 : 942,250,408.43 = 185,486,215.78 : x
  2. Step 2: Convert to fraction form
    628,098,765.85/942,250,408.43 = 185,486,215.78/x
  3. Step 3: Cross multiply
    628,098,765.85x = 942,250,408.43 × 185,486,215.78
  4. Step 4: Simplify right side
    628,098,765.85x = 174,774,462,576,840,096
  5. Step 5: Solve for x
    x = 174,774,462,576,840,096/628,098,765.85
  6. Step 6: Final answer
    x = 278,259,522.35

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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.