Home / 30,691,738.69-42,354,603.03-16,940,706.46

Finding the Fourth Proportional to 30,691,738.69, 42,354,603.03 and 16,940,706.46

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Solution

The fourth proportional to 30,691,738.69, 42,354,603.03 and 16,940,706.46 is: 23,378,176.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,691,738.69 : 42,354,603.03 = 16,940,706.46 : x
  2. Step 2: Convert to fraction form
    30,691,738.69/42,354,603.03 = 16,940,706.46/x
  3. Step 3: Cross multiply
    30,691,738.69x = 42,354,603.03 × 16,940,706.46
  4. Step 4: Simplify right side
    30,691,738.69x = 717,516,897,118,697.62
  5. Step 5: Solve for x
    x = 717,516,897,118,697.62/30,691,738.69
  6. Step 6: Final answer
    x = 23,378,176.92

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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.