Home / 12,085,811.80-18,128,717.70-11,497,946.20

Finding the Fourth Proportional to 12,085,811.80, 18,128,717.70 and 11,497,946.20

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Solution

The fourth proportional to 12,085,811.80, 18,128,717.70 and 11,497,946.20 is: 17,246,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085,811.80 : 18,128,717.70 = 11,497,946.20 : x
  2. Step 2: Convert to fraction form
    12,085,811.80/18,128,717.70 = 11,497,946.20/x
  3. Step 3: Cross multiply
    12,085,811.80x = 18,128,717.70 × 11,497,946.20
  4. Step 4: Simplify right side
    12,085,811.80x = 208,443,020,789,587.72
  5. Step 5: Solve for x
    x = 208,443,020,789,587.72/12,085,811.80
  6. Step 6: Final answer
    x = 17,246,919.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.