Home / 15,285,932.72-21,095,091.60-8,760,813.20

Finding the Fourth Proportional to 15,285,932.72, 21,095,091.60 and 8,760,813.20

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Solution

The fourth proportional to 15,285,932.72, 21,095,091.60 and 8,760,813.20 is: 12,090,211.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285,932.72 : 21,095,091.60 = 8,760,813.20 : x
  2. Step 2: Convert to fraction form
    15,285,932.72/21,095,091.60 = 8,760,813.20/x
  3. Step 3: Cross multiply
    15,285,932.72x = 21,095,091.60 × 8,760,813.20
  4. Step 4: Simplify right side
    15,285,932.72x = 184,810,156,944,489.12
  5. Step 5: Solve for x
    x = 184,810,156,944,489.12/15,285,932.72
  6. Step 6: Final answer
    x = 12,090,211.33

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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.