Home / 309,971,491.50-427,760,658.27-170,741,822.70

Finding the Fourth Proportional to 309,971,491.50, 427,760,658.27 and 170,741,822.70

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Solution

The fourth proportional to 309,971,491.50, 427,760,658.27 and 170,741,822.70 is: 235,623,715.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,971,491.50 : 427,760,658.27 = 170,741,822.70 : x
  2. Step 2: Convert to fraction form
    309,971,491.50/427,760,658.27 = 170,741,822.70/x
  3. Step 3: Cross multiply
    309,971,491.50x = 427,760,658.27 × 170,741,822.70
  4. Step 4: Simplify right side
    309,971,491.50x = 73,036,634,472,371,616
  5. Step 5: Solve for x
    x = 73,036,634,472,371,616/309,971,491.50
  6. Step 6: Final answer
    x = 235,623,715.33

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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.