Home / 8,478,009.36-11,693,722.60-5,576,472.72

Finding the Fourth Proportional to 8,478,009.36, 11,693,722.60 and 5,576,472.72

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Solution

The fourth proportional to 8,478,009.36, 11,693,722.60 and 5,576,472.72 is: 7,691,631.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,009.36 : 11,693,722.60 = 5,576,472.72 : x
  2. Step 2: Convert to fraction form
    8,478,009.36/11,693,722.60 = 5,576,472.72/x
  3. Step 3: Cross multiply
    8,478,009.36x = 11,693,722.60 × 5,576,472.72
  4. Step 4: Simplify right side
    8,478,009.36x = 65,209,725,074,147.47
  5. Step 5: Solve for x
    x = 65,209,725,074,147.47/8,478,009.36
  6. Step 6: Final answer
    x = 7,691,631.64

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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.