Home / 89,029,841.80-133,544,762.70-80,243,350.60

Finding the Fourth Proportional to 89,029,841.80, 133,544,762.70 and 80,243,350.60

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Solution

The fourth proportional to 89,029,841.80, 133,544,762.70 and 80,243,350.60 is: 120,365,025.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,029,841.80 : 133,544,762.70 = 80,243,350.60 : x
  2. Step 2: Convert to fraction form
    89,029,841.80/133,544,762.70 = 80,243,350.60/x
  3. Step 3: Cross multiply
    89,029,841.80x = 133,544,762.70 × 80,243,350.60
  4. Step 4: Simplify right side
    89,029,841.80x = 10,716,079,214,129,902
  5. Step 5: Solve for x
    x = 10,716,079,214,129,902/89,029,841.80
  6. Step 6: Final answer
    x = 120,365,025.90

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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.