Home / 8,065,477.80-12,098,216.70-7,318,981.80

Finding the Fourth Proportional to 8,065,477.80, 12,098,216.70 and 7,318,981.80

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Solution

The fourth proportional to 8,065,477.80, 12,098,216.70 and 7,318,981.80 is: 10,978,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065,477.80 : 12,098,216.70 = 7,318,981.80 : x
  2. Step 2: Convert to fraction form
    8,065,477.80/12,098,216.70 = 7,318,981.80/x
  3. Step 3: Cross multiply
    8,065,477.80x = 12,098,216.70 × 7,318,981.80
  4. Step 4: Simplify right side
    8,065,477.80x = 88,546,627,839,756.05
  5. Step 5: Solve for x
    x = 88,546,627,839,756.05/8,065,477.80
  6. Step 6: Final answer
    x = 10,978,472.70

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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.