Home / 99,697,833.60-149,285,671.20-80,163,225.60

Finding the Fourth Proportional to 99,697,833.60, 149,285,671.20 and 80,163,225.60

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Solution

The fourth proportional to 99,697,833.60, 149,285,671.20 and 80,163,225.60 is: 120,034,914.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,697,833.60 : 149,285,671.20 = 80,163,225.60 : x
  2. Step 2: Convert to fraction form
    99,697,833.60/149,285,671.20 = 80,163,225.60/x
  3. Step 3: Cross multiply
    99,697,833.60x = 149,285,671.20 × 80,163,225.60
  4. Step 4: Simplify right side
    99,697,833.60x = 11,967,220,939,253,020
  5. Step 5: Solve for x
    x = 11,967,220,939,253,020/99,697,833.60
  6. Step 6: Final answer
    x = 120,034,914.57

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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.