Home / 82,090,378.80-123,054,352.20-38,883,639.60

Finding the Fourth Proportional to 82,090,378.80, 123,054,352.20 and 38,883,639.60

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Solution

The fourth proportional to 82,090,378.80, 123,054,352.20 and 38,883,639.60 is: 58,286,989.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,090,378.80 : 123,054,352.20 = 38,883,639.60 : x
  2. Step 2: Convert to fraction form
    82,090,378.80/123,054,352.20 = 38,883,639.60/x
  3. Step 3: Cross multiply
    82,090,378.80x = 123,054,352.20 × 38,883,639.60
  4. Step 4: Simplify right side
    82,090,378.80x = 4,784,801,082,156,267
  5. Step 5: Solve for x
    x = 4,784,801,082,156,267/82,090,378.80
  6. Step 6: Final answer
    x = 58,286,989.93

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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.