Home / 228,864,910.40-343,297,365.60-85,228,020.80

Finding the Fourth Proportional to 228,864,910.40, 343,297,365.60 and 85,228,020.80

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Solution

The fourth proportional to 228,864,910.40, 343,297,365.60 and 85,228,020.80 is: 127,842,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,864,910.40 : 343,297,365.60 = 85,228,020.80 : x
  2. Step 2: Convert to fraction form
    228,864,910.40/343,297,365.60 = 85,228,020.80/x
  3. Step 3: Cross multiply
    228,864,910.40x = 343,297,365.60 × 85,228,020.80
  4. Step 4: Simplify right side
    228,864,910.40x = 29,258,555,015,942,004
  5. Step 5: Solve for x
    x = 29,258,555,015,942,004/228,864,910.40
  6. Step 6: Final answer
    x = 127,842,031.20

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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.