Home / 30,086,039.72-45,028,503.11-17,128,711.95

Finding the Fourth Proportional to 30,086,039.72, 45,028,503.11 and 17,128,711.95

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Solution

The fourth proportional to 30,086,039.72, 45,028,503.11 and 17,128,711.95 is: 25,635,818.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,086,039.72 : 45,028,503.11 = 17,128,711.95 : x
  2. Step 2: Convert to fraction form
    30,086,039.72/45,028,503.11 = 17,128,711.95/x
  3. Step 3: Cross multiply
    30,086,039.72x = 45,028,503.11 × 17,128,711.95
  4. Step 4: Simplify right side
    30,086,039.72x = 771,280,259,184,834
  5. Step 5: Solve for x
    x = 771,280,259,184,834/30,086,039.72
  6. Step 6: Final answer
    x = 25,635,818.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.