Home / 305,910,705.25-422,156,833.99-166,681,467.01

Finding the Fourth Proportional to 305,910,705.25, 422,156,833.99 and 166,681,467.01

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Solution

The fourth proportional to 305,910,705.25, 422,156,833.99 and 166,681,467.01 is: 230,020,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,910,705.25 : 422,156,833.99 = 166,681,467.01 : x
  2. Step 2: Convert to fraction form
    305,910,705.25/422,156,833.99 = 166,681,467.01/x
  3. Step 3: Cross multiply
    305,910,705.25x = 422,156,833.99 × 166,681,467.01
  4. Step 4: Simplify right side
    305,910,705.25x = 70,365,720,396,278,136
  5. Step 5: Solve for x
    x = 70,365,720,396,278,136/305,910,705.25
  6. Step 6: Final answer
    x = 230,020,457.57

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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.