Home / 12,122,031.91-16,728,758.69-6,615,759.93

Finding the Fourth Proportional to 12,122,031.91, 16,728,758.69 and 6,615,759.93

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Solution

The fourth proportional to 12,122,031.91, 16,728,758.69 and 6,615,759.93 is: 9,129,942.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122,031.91 : 16,728,758.69 = 6,615,759.93 : x
  2. Step 2: Convert to fraction form
    12,122,031.91/16,728,758.69 = 6,615,759.93/x
  3. Step 3: Cross multiply
    12,122,031.91x = 16,728,758.69 × 6,615,759.93
  4. Step 4: Simplify right side
    12,122,031.91x = 110,673,451,386,862.48
  5. Step 5: Solve for x
    x = 110,673,451,386,862.48/12,122,031.91
  6. Step 6: Final answer
    x = 9,129,942.26

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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.