Home / 30,616,721.76-42,251,180.64-16,865,652.96

Finding the Fourth Proportional to 30,616,721.76, 42,251,180.64 and 16,865,652.96

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Solution

The fourth proportional to 30,616,721.76, 42,251,180.64 and 16,865,652.96 is: 23,274,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,616,721.76 : 42,251,180.64 = 16,865,652.96 : x
  2. Step 2: Convert to fraction form
    30,616,721.76/42,251,180.64 = 16,865,652.96/x
  3. Step 3: Cross multiply
    30,616,721.76x = 42,251,180.64 × 16,865,652.96
  4. Step 4: Simplify right side
    30,616,721.76x = 712,593,749,824,510.75
  5. Step 5: Solve for x
    x = 712,593,749,824,510.75/30,616,721.76
  6. Step 6: Final answer
    x = 23,274,658.71

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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.