Home / 258,061,540.40-386,454,581.40-171,330,369.20

Finding the Fourth Proportional to 258,061,540.40, 386,454,581.40 and 171,330,369.20

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Solution

The fourth proportional to 258,061,540.40, 386,454,581.40 and 171,330,369.20 is: 256,572,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,061,540.40 : 386,454,581.40 = 171,330,369.20 : x
  2. Step 2: Convert to fraction form
    258,061,540.40/386,454,581.40 = 171,330,369.20/x
  3. Step 3: Cross multiply
    258,061,540.40x = 386,454,581.40 × 171,330,369.20
  4. Step 4: Simplify right side
    258,061,540.40x = 66,211,406,110,293,448
  5. Step 5: Solve for x
    x = 66,211,406,110,293,448/258,061,540.40
  6. Step 6: Final answer
    x = 256,572,157.20

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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.