Home / 20,105,312.27-27,754,967.79-12,376,979.15

Finding the Fourth Proportional to 20,105,312.27, 27,754,967.79 and 12,376,979.15

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Solution

The fourth proportional to 20,105,312.27, 27,754,967.79 and 12,376,979.15 is: 17,086,163.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105,312.27 : 27,754,967.79 = 12,376,979.15 : x
  2. Step 2: Convert to fraction form
    20,105,312.27/27,754,967.79 = 12,376,979.15/x
  3. Step 3: Cross multiply
    20,105,312.27x = 27,754,967.79 × 12,376,979.15
  4. Step 4: Simplify right side
    20,105,312.27x = 343,522,657,506,976.69
  5. Step 5: Solve for x
    x = 343,522,657,506,976.69/20,105,312.27
  6. Step 6: Final answer
    x = 17,086,163.75

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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.