Home / 21,525,138.71-29,697,239.42-13,794,443.63

Finding the Fourth Proportional to 21,525,138.71, 29,697,239.42 and 13,794,443.63

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Solution

The fourth proportional to 21,525,138.71, 29,697,239.42 and 13,794,443.63 is: 19,031,556.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,525,138.71 : 29,697,239.42 = 13,794,443.63 : x
  2. Step 2: Convert to fraction form
    21,525,138.71/29,697,239.42 = 13,794,443.63/x
  3. Step 3: Cross multiply
    21,525,138.71x = 29,697,239.42 × 13,794,443.63
  4. Step 4: Simplify right side
    21,525,138.71x = 409,656,894,928,345.44
  5. Step 5: Solve for x
    x = 409,656,894,928,345.44/21,525,138.71
  6. Step 6: Final answer
    x = 19,031,556.57

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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.