Home / 159,142,691.57-219,647,000.09-99,631,670.81

Finding the Fourth Proportional to 159,142,691.57, 219,647,000.09 and 99,631,670.81

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Solution

The fourth proportional to 159,142,691.57, 219,647,000.09 and 99,631,670.81 is: 137,510,540.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,142,691.57 : 219,647,000.09 = 99,631,670.81 : x
  2. Step 2: Convert to fraction form
    159,142,691.57/219,647,000.09 = 99,631,670.81/x
  3. Step 3: Cross multiply
    159,142,691.57x = 219,647,000.09 × 99,631,670.81
  4. Step 4: Simplify right side
    159,142,691.57x = 21,883,797,606,521,768
  5. Step 5: Solve for x
    x = 21,883,797,606,521,768/159,142,691.57
  6. Step 6: Final answer
    x = 137,510,540.96

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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.