Home / 20,087,814.71-27,721,417.02-11,147,108.42

Finding the Fourth Proportional to 20,087,814.71, 27,721,417.02 and 11,147,108.42

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Solution

The fourth proportional to 20,087,814.71, 27,721,417.02 and 11,147,108.42 is: 15,383,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087,814.71 : 27,721,417.02 = 11,147,108.42 : x
  2. Step 2: Convert to fraction form
    20,087,814.71/27,721,417.02 = 11,147,108.42/x
  3. Step 3: Cross multiply
    20,087,814.71x = 27,721,417.02 × 11,147,108.42
  4. Step 4: Simplify right side
    20,087,814.71x = 309,013,641,105,475.19
  5. Step 5: Solve for x
    x = 309,013,641,105,475.19/20,087,814.71
  6. Step 6: Final answer
    x = 15,383,138.76

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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.