Home / 99,697,821.10-149,285,652.45-80,163,213.10

Finding the Fourth Proportional to 99,697,821.10, 149,285,652.45 and 80,163,213.10

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Solution

The fourth proportional to 99,697,821.10, 149,285,652.45 and 80,163,213.10 is: 120,034,895.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,697,821.10 : 149,285,652.45 = 80,163,213.10 : x
  2. Step 2: Convert to fraction form
    99,697,821.10/149,285,652.45 = 80,163,213.10/x
  3. Step 3: Cross multiply
    99,697,821.10x = 149,285,652.45 × 80,163,213.10
  4. Step 4: Simplify right side
    99,697,821.10x = 11,967,217,570,121,886
  5. Step 5: Solve for x
    x = 11,967,217,570,121,886/99,697,821.10
  6. Step 6: Final answer
    x = 120,034,895.83

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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.