Home / 123,503,511.23-170,435,104.19-67,749,381.87

Finding the Fourth Proportional to 123,503,511.23, 170,435,104.19 and 67,749,381.87

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Solution

The fourth proportional to 123,503,511.23, 170,435,104.19 and 67,749,381.87 is: 93,494,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,503,511.23 : 170,435,104.19 = 67,749,381.87 : x
  2. Step 2: Convert to fraction form
    123,503,511.23/170,435,104.19 = 67,749,381.87/x
  3. Step 3: Cross multiply
    123,503,511.23x = 170,435,104.19 × 67,749,381.87
  4. Step 4: Simplify right side
    123,503,511.23x = 11,546,872,957,821,548
  5. Step 5: Solve for x
    x = 11,546,872,957,821,548/123,503,511.23
  6. Step 6: Final answer
    x = 93,494,288.89

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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.