Home / 206,877,892-310,318,393.20-91,831,505.44

Finding the Fourth Proportional to 206,877,892, 310,318,393.20 and 91,831,505.44

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Solution

The fourth proportional to 206,877,892, 310,318,393.20 and 91,831,505.44 is: 137,747,948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,877,892 : 310,318,393.20 = 91,831,505.44 : x
  2. Step 2: Convert to fraction form
    206,877,892/310,318,393.20 = 91,831,505.44/x
  3. Step 3: Cross multiply
    206,877,892x = 310,318,393.20 × 91,831,505.44
  4. Step 4: Simplify right side
    206,877,892x = 28,497,005,213,277,856
  5. Step 5: Solve for x
    x = 28,497,005,213,277,856/206,877,892
  6. Step 6: Final answer
    x = 137,747,948.50

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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.