Home / 243,745,902.40-336,369,308.80-139,326,215.76

Finding the Fourth Proportional to 243,745,902.40, 336,369,308.80 and 139,326,215.76

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Solution

The fourth proportional to 243,745,902.40, 336,369,308.80 and 139,326,215.76 is: 192,270,156.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,745,902.40 : 336,369,308.80 = 139,326,215.76 : x
  2. Step 2: Convert to fraction form
    243,745,902.40/336,369,308.80 = 139,326,215.76/x
  3. Step 3: Cross multiply
    243,745,902.40x = 336,369,308.80 × 139,326,215.76
  4. Step 4: Simplify right side
    243,745,902.40x = 46,865,062,892,910,864
  5. Step 5: Solve for x
    x = 46,865,062,892,910,864/243,745,902.40
  6. Step 6: Final answer
    x = 192,270,156.88

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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.