Home / 20,437,512.57-30,621,566.03-12,333,458.93

Finding the Fourth Proportional to 20,437,512.57, 30,621,566.03 and 12,333,458.93

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Solution

The fourth proportional to 20,437,512.57, 30,621,566.03 and 12,333,458.93 is: 18,479,246.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437,512.57 : 30,621,566.03 = 12,333,458.93 : x
  2. Step 2: Convert to fraction form
    20,437,512.57/30,621,566.03 = 12,333,458.93/x
  3. Step 3: Cross multiply
    20,437,512.57x = 30,621,566.03 × 12,333,458.93
  4. Step 4: Simplify right side
    20,437,512.57x = 377,669,826,788,513
  5. Step 5: Solve for x
    x = 377,669,826,788,513/20,437,512.57
  6. Step 6: Final answer
    x = 18,479,246.21

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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.