Home / 20,912,942.58-31,369,438.36-6,536,085.72

Finding the Fourth Proportional to 20,912,942.58, 31,369,438.36 and 6,536,085.72

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Solution

The fourth proportional to 20,912,942.58, 31,369,438.36 and 6,536,085.72 is: 9,804,136.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,942.58 : 31,369,438.36 = 6,536,085.72 : x
  2. Step 2: Convert to fraction form
    20,912,942.58/31,369,438.36 = 6,536,085.72/x
  3. Step 3: Cross multiply
    20,912,942.58x = 31,369,438.36 × 6,536,085.72
  4. Step 4: Simplify right side
    20,912,942.58x = 205,033,338,109,216.22
  5. Step 5: Solve for x
    x = 205,033,338,109,216.22/20,912,942.58
  6. Step 6: Final answer
    x = 9,804,136.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.