Home / 82,608,431.40-123,912,647.10-73,680,222.60

Finding the Fourth Proportional to 82,608,431.40, 123,912,647.10 and 73,680,222.60

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Solution

The fourth proportional to 82,608,431.40, 123,912,647.10 and 73,680,222.60 is: 110,520,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,608,431.40 : 123,912,647.10 = 73,680,222.60 : x
  2. Step 2: Convert to fraction form
    82,608,431.40/123,912,647.10 = 73,680,222.60/x
  3. Step 3: Cross multiply
    82,608,431.40x = 123,912,647.10 × 73,680,222.60
  4. Step 4: Simplify right side
    82,608,431.40x = 9,129,911,421,283,244
  5. Step 5: Solve for x
    x = 9,129,911,421,283,244/82,608,431.40
  6. Step 6: Final answer
    x = 110,520,333.90

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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.