Home / 208,573,984.67-287,701,174.44-123,741,043.23

Finding the Fourth Proportional to 208,573,984.67, 287,701,174.44 and 123,741,043.23

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Solution

The fourth proportional to 208,573,984.67, 287,701,174.44 and 123,741,043.23 is: 170,684,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,573,984.67 : 287,701,174.44 = 123,741,043.23 : x
  2. Step 2: Convert to fraction form
    208,573,984.67/287,701,174.44 = 123,741,043.23/x
  3. Step 3: Cross multiply
    208,573,984.67x = 287,701,174.44 × 123,741,043.23
  4. Step 4: Simplify right side
    208,573,984.67x = 35,600,443,463,869,196
  5. Step 5: Solve for x
    x = 35,600,443,463,869,196/208,573,984.67
  6. Step 6: Final answer
    x = 170,684,965.91

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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.