Home / 11,988,612.48-16,533,242.64-7,857,139.44

Finding the Fourth Proportional to 11,988,612.48, 16,533,242.64 and 7,857,139.44

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Solution

The fourth proportional to 11,988,612.48, 16,533,242.64 and 7,857,139.44 is: 10,835,615.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988,612.48 : 16,533,242.64 = 7,857,139.44 : x
  2. Step 2: Convert to fraction form
    11,988,612.48/16,533,242.64 = 7,857,139.44/x
  3. Step 3: Cross multiply
    11,988,612.48x = 16,533,242.64 × 7,857,139.44
  4. Step 4: Simplify right side
    11,988,612.48x = 129,903,992,817,833.73
  5. Step 5: Solve for x
    x = 129,903,992,817,833.73/11,988,612.48
  6. Step 6: Final answer
    x = 10,835,615.30

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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.