Home / 257,515,116.30-386,272,675.26-211,892,383.08

Finding the Fourth Proportional to 257,515,116.30, 386,272,675.26 and 211,892,383.08

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Solution

The fourth proportional to 257,515,116.30, 386,272,675.26 and 211,892,383.08 is: 317,838,575.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,515,116.30 : 386,272,675.26 = 211,892,383.08 : x
  2. Step 2: Convert to fraction form
    257,515,116.30/386,272,675.26 = 211,892,383.08/x
  3. Step 3: Cross multiply
    257,515,116.30x = 386,272,675.26 × 211,892,383.08
  4. Step 4: Simplify right side
    257,515,116.30x = 81,848,237,679,528,368
  5. Step 5: Solve for x
    x = 81,848,237,679,528,368/257,515,116.30
  6. Step 6: Final answer
    x = 317,838,575.29

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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.