Home / 343,872,990.80-515,809,486.20-228,483,371.60

Finding the Fourth Proportional to 343,872,990.80, 515,809,486.20 and 228,483,371.60

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Solution

The fourth proportional to 343,872,990.80, 515,809,486.20 and 228,483,371.60 is: 342,725,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,872,990.80 : 515,809,486.20 = 228,483,371.60 : x
  2. Step 2: Convert to fraction form
    343,872,990.80/515,809,486.20 = 228,483,371.60/x
  3. Step 3: Cross multiply
    343,872,990.80x = 515,809,486.20 × 228,483,371.60
  4. Step 4: Simplify right side
    343,872,990.80x = 117,853,890,510,239,664
  5. Step 5: Solve for x
    x = 117,853,890,510,239,664/343,872,990.80
  6. Step 6: Final answer
    x = 342,725,057.40

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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.