Home / 21,438,338.22-29,581,576.38-12,736,287.18

Finding the Fourth Proportional to 21,438,338.22, 29,581,576.38 and 12,736,287.18

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Solution

The fourth proportional to 21,438,338.22, 29,581,576.38 and 12,736,287.18 is: 17,574,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,338.22 : 29,581,576.38 = 12,736,287.18 : x
  2. Step 2: Convert to fraction form
    21,438,338.22/29,581,576.38 = 12,736,287.18/x
  3. Step 3: Cross multiply
    21,438,338.22x = 29,581,576.38 × 12,736,287.18
  4. Step 4: Simplify right side
    21,438,338.22x = 376,759,452,012,784.81
  5. Step 5: Solve for x
    x = 376,759,452,012,784.81/21,438,338.22
  6. Step 6: Final answer
    x = 17,574,097.78

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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.