Home / 228,490,236.45-315,325,567.35-128,019,540.33

Finding the Fourth Proportional to 228,490,236.45, 315,325,567.35 and 128,019,540.33

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Solution

The fourth proportional to 228,490,236.45, 315,325,567.35 and 128,019,540.33 is: 176,672,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,490,236.45 : 315,325,567.35 = 128,019,540.33 : x
  2. Step 2: Convert to fraction form
    228,490,236.45/315,325,567.35 = 128,019,540.33/x
  3. Step 3: Cross multiply
    228,490,236.45x = 315,325,567.35 × 128,019,540.33
  4. Step 4: Simplify right side
    228,490,236.45x = 40,367,834,186,443,456
  5. Step 5: Solve for x
    x = 40,367,834,186,443,456/228,490,236.45
  6. Step 6: Final answer
    x = 176,672,031.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.