Home / 203,660,170.90-305,490,256.35-74,272,002.10

Finding the Fourth Proportional to 203,660,170.90, 305,490,256.35 and 74,272,002.10

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Solution

The fourth proportional to 203,660,170.90, 305,490,256.35 and 74,272,002.10 is: 111,408,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,660,170.90 : 305,490,256.35 = 74,272,002.10 : x
  2. Step 2: Convert to fraction form
    203,660,170.90/305,490,256.35 = 74,272,002.10/x
  3. Step 3: Cross multiply
    203,660,170.90x = 305,490,256.35 × 74,272,002.10
  4. Step 4: Simplify right side
    203,660,170.90x = 22,689,372,961,156,740
  5. Step 5: Solve for x
    x = 22,689,372,961,156,740/203,660,170.90
  6. Step 6: Final answer
    x = 111,408,003.15

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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.