Home / 20,769,276.83-28,661,837.06-11,476,808.60

Finding the Fourth Proportional to 20,769,276.83, 28,661,837.06 and 11,476,808.60

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Solution

The fourth proportional to 20,769,276.83, 28,661,837.06 and 11,476,808.60 is: 15,838,125.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769,276.83 : 28,661,837.06 = 11,476,808.60 : x
  2. Step 2: Convert to fraction form
    20,769,276.83/28,661,837.06 = 11,476,808.60/x
  3. Step 3: Cross multiply
    20,769,276.83x = 28,661,837.06 × 11,476,808.60
  4. Step 4: Simplify right side
    20,769,276.83x = 328,946,418,062,006.69
  5. Step 5: Solve for x
    x = 328,946,418,062,006.69/20,769,276.83
  6. Step 6: Final answer
    x = 15,838,125.74

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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.