Home / 20,341,907.13-28,072,133.79-11,049,658.41

Finding the Fourth Proportional to 20,341,907.13, 28,072,133.79 and 11,049,658.41

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Solution

The fourth proportional to 20,341,907.13, 28,072,133.79 and 11,049,658.41 is: 15,248,692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341,907.13 : 28,072,133.79 = 11,049,658.41 : x
  2. Step 2: Convert to fraction form
    20,341,907.13/28,072,133.79 = 11,049,658.41/x
  3. Step 3: Cross multiply
    20,341,907.13x = 28,072,133.79 × 11,049,658.41
  4. Step 4: Simplify right side
    20,341,907.13x = 310,187,489,219,318.69
  5. Step 5: Solve for x
    x = 310,187,489,219,318.69/20,341,907.13
  6. Step 6: Final answer
    x = 15,248,692.62

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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.