Home / 13,356,115.84-20,037,627.86-7,821,325.78

Finding the Fourth Proportional to 13,356,115.84, 20,037,627.86 and 7,821,325.78

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Solution

The fourth proportional to 13,356,115.84, 20,037,627.86 and 7,821,325.78 is: 11,734,011.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356,115.84 : 20,037,627.86 = 7,821,325.78 : x
  2. Step 2: Convert to fraction form
    13,356,115.84/20,037,627.86 = 7,821,325.78/x
  3. Step 3: Cross multiply
    13,356,115.84x = 20,037,627.86 × 7,821,325.78
  4. Step 4: Simplify right side
    13,356,115.84x = 156,720,815,251,276.09
  5. Step 5: Solve for x
    x = 156,720,815,251,276.09/13,356,115.84
  6. Step 6: Final answer
    x = 11,734,011.38

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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.