Home / 501,980,414.52-692,749,793.16-278,971,493.88

Finding the Fourth Proportional to 501,980,414.52, 692,749,793.16 and 278,971,493.88

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Solution

The fourth proportional to 501,980,414.52, 692,749,793.16 and 278,971,493.88 is: 384,990,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,980,414.52 : 692,749,793.16 = 278,971,493.88 : x
  2. Step 2: Convert to fraction form
    501,980,414.52/692,749,793.16 = 278,971,493.88/x
  3. Step 3: Cross multiply
    501,980,414.52x = 692,749,793.16 × 278,971,493.88
  4. Step 4: Simplify right side
    501,980,414.52x = 193,257,444,682,906,208
  5. Step 5: Solve for x
    x = 193,257,444,682,906,208/501,980,414.52
  6. Step 6: Final answer
    x = 384,990,009.76

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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.