Home / 15,256,784.44-21,056,190.06-9,145,009.72

Finding the Fourth Proportional to 15,256,784.44, 21,056,190.06 and 9,145,009.72

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Solution

The fourth proportional to 15,256,784.44, 21,056,190.06 and 9,145,009.72 is: 12,621,208.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,256,784.44 : 21,056,190.06 = 9,145,009.72 : x
  2. Step 2: Convert to fraction form
    15,256,784.44/21,056,190.06 = 9,145,009.72/x
  3. Step 3: Cross multiply
    15,256,784.44x = 21,056,190.06 × 9,145,009.72
  4. Step 4: Simplify right side
    15,256,784.44x = 192,559,062,764,867.38
  5. Step 5: Solve for x
    x = 192,559,062,764,867.38/15,256,784.44
  6. Step 6: Final answer
    x = 12,621,208.85

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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.