Home / 20,858,918.50-31,302,260.79-8,572,957.30

Finding the Fourth Proportional to 20,858,918.50, 31,302,260.79 and 8,572,957.30

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Solution

The fourth proportional to 20,858,918.50, 31,302,260.79 and 8,572,957.30 is: 12,865,141.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858,918.50 : 31,302,260.79 = 8,572,957.30 : x
  2. Step 2: Convert to fraction form
    20,858,918.50/31,302,260.79 = 8,572,957.30/x
  3. Step 3: Cross multiply
    20,858,918.50x = 31,302,260.79 × 8,572,957.30
  4. Step 4: Simplify right side
    20,858,918.50x = 268,352,945,146,134.28
  5. Step 5: Solve for x
    x = 268,352,945,146,134.28/20,858,918.50
  6. Step 6: Final answer
    x = 12,865,141.84

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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.