Home / 373,438,766.82-515,390,688.20-212,541,870.04

Finding the Fourth Proportional to 373,438,766.82, 515,390,688.20 and 212,541,870.04

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Solution

The fourth proportional to 373,438,766.82, 515,390,688.20 and 212,541,870.04 is: 293,333,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,438,766.82 : 515,390,688.20 = 212,541,870.04 : x
  2. Step 2: Convert to fraction form
    373,438,766.82/515,390,688.20 = 212,541,870.04/x
  3. Step 3: Cross multiply
    373,438,766.82x = 515,390,688.20 × 212,541,870.04
  4. Step 4: Simplify right side
    373,438,766.82x = 109,542,100,671,230,560
  5. Step 5: Solve for x
    x = 109,542,100,671,230,560/373,438,766.82
  6. Step 6: Final answer
    x = 293,333,500.44

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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.