Home / 500,145,376.32-750,318,677.42-172,633,575.15

Finding the Fourth Proportional to 500,145,376.32, 750,318,677.42 and 172,633,575.15

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Solution

The fourth proportional to 500,145,376.32, 750,318,677.42 and 172,633,575.15 is: 258,985,090.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,145,376.32 : 750,318,677.42 = 172,633,575.15 : x
  2. Step 2: Convert to fraction form
    500,145,376.32/750,318,677.42 = 172,633,575.15/x
  3. Step 3: Cross multiply
    500,145,376.32x = 750,318,677.42 × 172,633,575.15
  4. Step 4: Simplify right side
    500,145,376.32x = 129,530,195,783,971,008
  5. Step 5: Solve for x
    x = 129,530,195,783,971,008/500,145,376.32
  6. Step 6: Final answer
    x = 258,985,090.97

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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.