Home / 82,087,213.80-123,049,604.70-38,880,474.60

Finding the Fourth Proportional to 82,087,213.80, 123,049,604.70 and 38,880,474.60

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Solution

The fourth proportional to 82,087,213.80, 123,049,604.70 and 38,880,474.60 is: 58,282,244.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,087,213.80 : 123,049,604.70 = 38,880,474.60 : x
  2. Step 2: Convert to fraction form
    82,087,213.80/123,049,604.70 = 38,880,474.60/x
  3. Step 3: Cross multiply
    82,087,213.80x = 123,049,604.70 × 38,880,474.60
  4. Step 4: Simplify right side
    82,087,213.80x = 4,784,227,030,078,391
  5. Step 5: Solve for x
    x = 4,784,227,030,078,391/82,087,213.80
  6. Step 6: Final answer
    x = 58,282,244.07

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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.