Home / 15,247,939.86-21,042,157.10-8,372,421.95

Finding the Fourth Proportional to 15,247,939.86, 21,042,157.10 and 8,372,421.95

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Solution

The fourth proportional to 15,247,939.86, 21,042,157.10 and 8,372,421.95 is: 11,553,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247,939.86 : 21,042,157.10 = 8,372,421.95 : x
  2. Step 2: Convert to fraction form
    15,247,939.86/21,042,157.10 = 8,372,421.95/x
  3. Step 3: Cross multiply
    15,247,939.86x = 21,042,157.10 × 8,372,421.95
  4. Step 4: Simplify right side
    15,247,939.86x = 176,173,817,832,315.44
  5. Step 5: Solve for x
    x = 176,173,817,832,315.44/15,247,939.86
  6. Step 6: Final answer
    x = 11,553,942.33

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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.