Home / 20,753,121.65-31,148,572.91-11,045,884.31

Finding the Fourth Proportional to 20,753,121.65, 31,148,572.91 and 11,045,884.31

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Solution

The fourth proportional to 20,753,121.65, 31,148,572.91 and 11,045,884.31 is: 16,578,880.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753,121.65 : 31,148,572.91 = 11,045,884.31 : x
  2. Step 2: Convert to fraction form
    20,753,121.65/31,148,572.91 = 11,045,884.31/x
  3. Step 3: Cross multiply
    20,753,121.65x = 31,148,572.91 × 11,045,884.31
  4. Step 4: Simplify right side
    20,753,121.65x = 344,063,532,890,946.19
  5. Step 5: Solve for x
    x = 344,063,532,890,946.19/20,753,121.65
  6. Step 6: Final answer
    x = 16,578,880.94

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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.