Home / 12,112,668.38-18,172,939.16-8,085,526.58

Finding the Fourth Proportional to 12,112,668.38, 18,172,939.16 and 8,085,526.58

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Solution

The fourth proportional to 12,112,668.38, 18,172,939.16 and 8,085,526.58 is: 12,130,917.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,668.38 : 18,172,939.16 = 8,085,526.58 : x
  2. Step 2: Convert to fraction form
    12,112,668.38/18,172,939.16 = 8,085,526.58/x
  3. Step 3: Cross multiply
    12,112,668.38x = 18,172,939.16 × 8,085,526.58
  4. Step 4: Simplify right side
    12,112,668.38x = 146,937,782,524,038.19
  5. Step 5: Solve for x
    x = 146,937,782,524,038.19/12,112,668.38
  6. Step 6: Final answer
    x = 12,130,917.65

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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.