Home / 18,122,108.81-27,169,585.72-10,931,966.69

Finding the Fourth Proportional to 18,122,108.81, 27,169,585.72 and 10,931,966.69

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Solution

The fourth proportional to 18,122,108.81, 27,169,585.72 and 10,931,966.69 is: 16,389,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122,108.81 : 27,169,585.72 = 10,931,966.69 : x
  2. Step 2: Convert to fraction form
    18,122,108.81/27,169,585.72 = 10,931,966.69/x
  3. Step 3: Cross multiply
    18,122,108.81x = 27,169,585.72 × 10,931,966.69
  4. Step 4: Simplify right side
    18,122,108.81x = 297,017,006,072,139.62
  5. Step 5: Solve for x
    x = 297,017,006,072,139.62/18,122,108.81
  6. Step 6: Final answer
    x = 16,389,759.56

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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.