Home / 21,428,789.04-29,571,946.08-11,639,424.72

Finding the Fourth Proportional to 21,428,789.04, 29,571,946.08 and 11,639,424.72

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Solution

The fourth proportional to 21,428,789.04, 29,571,946.08 and 11,639,424.72 is: 16,062,524.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428,789.04 : 29,571,946.08 = 11,639,424.72 : x
  2. Step 2: Convert to fraction form
    21,428,789.04/29,571,946.08 = 11,639,424.72/x
  3. Step 3: Cross multiply
    21,428,789.04x = 29,571,946.08 × 11,639,424.72
  4. Step 4: Simplify right side
    21,428,789.04x = 344,200,440,222,059.12
  5. Step 5: Solve for x
    x = 344,200,440,222,059.12/21,428,789.04
  6. Step 6: Final answer
    x = 16,062,524.09

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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.