Home / 21,819,243.17-30,139,297.74-16,172,782.98

Finding the Fourth Proportional to 21,819,243.17, 30,139,297.74 and 16,172,782.98

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Solution

The fourth proportional to 21,819,243.17, 30,139,297.74 and 16,172,782.98 is: 22,339,744.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819,243.17 : 30,139,297.74 = 16,172,782.98 : x
  2. Step 2: Convert to fraction form
    21,819,243.17/30,139,297.74 = 16,172,782.98/x
  3. Step 3: Cross multiply
    21,819,243.17x = 30,139,297.74 × 16,172,782.98
  4. Step 4: Simplify right side
    21,819,243.17x = 487,436,321,344,954.12
  5. Step 5: Solve for x
    x = 487,436,321,344,954.12/21,819,243.17
  6. Step 6: Final answer
    x = 22,339,744.67

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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.