Home / 21,317,946.30-29,428,373.19-13,593,371.58

Finding the Fourth Proportional to 21,317,946.30, 29,428,373.19 and 13,593,371.58

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Solution

The fourth proportional to 21,317,946.30, 29,428,373.19 and 13,593,371.58 is: 18,764,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317,946.30 : 29,428,373.19 = 13,593,371.58 : x
  2. Step 2: Convert to fraction form
    21,317,946.30/29,428,373.19 = 13,593,371.58/x
  3. Step 3: Cross multiply
    21,317,946.30x = 29,428,373.19 × 13,593,371.58
  4. Step 4: Simplify right side
    21,317,946.30x = 400,030,811,766,579.94
  5. Step 5: Solve for x
    x = 400,030,811,766,579.94/21,317,946.30
  6. Step 6: Final answer
    x = 18,764,978.87

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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.