Home / 99,697,836.60-149,285,675.70-80,163,228.60

Finding the Fourth Proportional to 99,697,836.60, 149,285,675.70 and 80,163,228.60

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Solution

The fourth proportional to 99,697,836.60, 149,285,675.70 and 80,163,228.60 is: 120,034,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,697,836.60 : 149,285,675.70 = 80,163,228.60 : x
  2. Step 2: Convert to fraction form
    99,697,836.60/149,285,675.70 = 80,163,228.60/x
  3. Step 3: Cross multiply
    99,697,836.60x = 149,285,675.70 × 80,163,228.60
  4. Step 4: Simplify right side
    99,697,836.60x = 11,967,221,747,844,564
  5. Step 5: Solve for x
    x = 11,967,221,747,844,564/99,697,836.60
  6. Step 6: Final answer
    x = 120,034,919.07

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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.