Home / 18,999,414.88-28,488,324.61-7,478,637.86

Finding the Fourth Proportional to 18,999,414.88, 28,488,324.61 and 7,478,637.86

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Solution

The fourth proportional to 18,999,414.88, 28,488,324.61 and 7,478,637.86 is: 11,213,706.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999,414.88 : 28,488,324.61 = 7,478,637.86 : x
  2. Step 2: Convert to fraction form
    18,999,414.88/28,488,324.61 = 7,478,637.86/x
  3. Step 3: Cross multiply
    18,999,414.88x = 28,488,324.61 × 7,478,637.86
  4. Step 4: Simplify right side
    18,999,414.88x = 213,053,863,076,884.81
  5. Step 5: Solve for x
    x = 213,053,863,076,884.81/18,999,414.88
  6. Step 6: Final answer
    x = 11,213,706.55

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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.