Home / 12,143,328.80-18,296,922.65-10,031,660.42

Finding the Fourth Proportional to 12,143,328.80, 18,296,922.65 and 10,031,660.42

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Solution

The fourth proportional to 12,143,328.80, 18,296,922.65 and 10,031,660.42 is: 15,115,172.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143,328.80 : 18,296,922.65 = 10,031,660.42 : x
  2. Step 2: Convert to fraction form
    12,143,328.80/18,296,922.65 = 10,031,660.42/x
  3. Step 3: Cross multiply
    12,143,328.80x = 18,296,922.65 × 10,031,660.42
  4. Step 4: Simplify right side
    12,143,328.80x = 183,548,514,826,627.97
  5. Step 5: Solve for x
    x = 183,548,514,826,627.97/12,143,328.80
  6. Step 6: Final answer
    x = 15,115,172.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.