Home / 20,769,275.83-28,661,835.68-11,476,807.60

Finding the Fourth Proportional to 20,769,275.83, 28,661,835.68 and 11,476,807.60

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Solution

The fourth proportional to 20,769,275.83, 28,661,835.68 and 11,476,807.60 is: 15,838,124.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769,275.83 : 28,661,835.68 = 11,476,807.60 : x
  2. Step 2: Convert to fraction form
    20,769,275.83/28,661,835.68 = 11,476,807.60/x
  3. Step 3: Cross multiply
    20,769,275.83x = 28,661,835.68 × 11,476,807.60
  4. Step 4: Simplify right side
    20,769,275.83x = 328,946,373,562,175.12
  5. Step 5: Solve for x
    x = 328,946,373,562,175.12/20,769,275.83
  6. Step 6: Final answer
    x = 15,838,124.36

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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.