Home / 15,285,928.72-21,095,086.08-8,760,809.20

Finding the Fourth Proportional to 15,285,928.72, 21,095,086.08 and 8,760,809.20

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Solution

The fourth proportional to 15,285,928.72, 21,095,086.08 and 8,760,809.20 is: 12,090,205.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285,928.72 : 21,095,086.08 = 8,760,809.20 : x
  2. Step 2: Convert to fraction form
    15,285,928.72/21,095,086.08 = 8,760,809.20/x
  3. Step 3: Cross multiply
    15,285,928.72x = 21,095,086.08 × 8,760,809.20
  4. Step 4: Simplify right side
    15,285,928.72x = 184,810,024,204,455.91
  5. Step 5: Solve for x
    x = 184,810,024,204,455.91/15,285,928.72
  6. Step 6: Final answer
    x = 12,090,205.81

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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.