Home / 206,379,678.68-284,795,417.72-112,294,212.87

Finding the Fourth Proportional to 206,379,678.68, 284,795,417.72 and 112,294,212.87

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Solution

The fourth proportional to 206,379,678.68, 284,795,417.72 and 112,294,212.87 is: 154,961,367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,379,678.68 : 284,795,417.72 = 112,294,212.87 : x
  2. Step 2: Convert to fraction form
    206,379,678.68/284,795,417.72 = 112,294,212.87/x
  3. Step 3: Cross multiply
    206,379,678.68x = 284,795,417.72 × 112,294,212.87
  4. Step 4: Simplify right side
    206,379,678.68x = 31,980,877,261,850,256
  5. Step 5: Solve for x
    x = 31,980,877,261,850,256/206,379,678.68
  6. Step 6: Final answer
    x = 154,961,367.64

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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.