Home / 28,051,208.76-42,082,529.94-12,691,120.44

Finding the Fourth Proportional to 28,051,208.76, 42,082,529.94 and 12,691,120.44

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Solution

The fourth proportional to 28,051,208.76, 42,082,529.94 and 12,691,120.44 is: 19,039,267.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051,208.76 : 42,082,529.94 = 12,691,120.44 : x
  2. Step 2: Convert to fraction form
    28,051,208.76/42,082,529.94 = 12,691,120.44/x
  3. Step 3: Cross multiply
    28,051,208.76x = 42,082,529.94 × 12,691,120.44
  4. Step 4: Simplify right side
    28,051,208.76x = 534,074,455,888,445.94
  5. Step 5: Solve for x
    x = 534,074,455,888,445.94/28,051,208.76
  6. Step 6: Final answer
    x = 19,039,267.09

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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.