Home / 15,178,561.45-20,946,911.25-8,652,072.31

Finding the Fourth Proportional to 15,178,561.45, 20,946,911.25 and 8,652,072.31

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Solution

The fourth proportional to 15,178,561.45, 20,946,911.25 and 8,652,072.31 is: 11,940,142.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178,561.45 : 20,946,911.25 = 8,652,072.31 : x
  2. Step 2: Convert to fraction form
    15,178,561.45/20,946,911.25 = 8,652,072.31/x
  3. Step 3: Cross multiply
    15,178,561.45x = 20,946,911.25 × 8,652,072.31
  4. Step 4: Simplify right side
    15,178,561.45x = 181,234,190,806,152.50
  5. Step 5: Solve for x
    x = 181,234,190,806,152.50/15,178,561.45
  6. Step 6: Final answer
    x = 11,940,142.77

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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.