Home / 271,487,357.40-407,231,036.10-67,015,432.65

Finding the Fourth Proportional to 271,487,357.40, 407,231,036.10 and 67,015,432.65

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Solution

The fourth proportional to 271,487,357.40, 407,231,036.10 and 67,015,432.65 is: 100,523,148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,487,357.40 : 407,231,036.10 = 67,015,432.65 : x
  2. Step 2: Convert to fraction form
    271,487,357.40/407,231,036.10 = 67,015,432.65/x
  3. Step 3: Cross multiply
    271,487,357.40x = 407,231,036.10 × 67,015,432.65
  4. Step 4: Simplify right side
    271,487,357.40x = 27,290,764,072,749,268
  5. Step 5: Solve for x
    x = 27,290,764,072,749,268/271,487,357.40
  6. Step 6: Final answer
    x = 100,523,148.98

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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.