Home / 853,505,768.70-1,281,215,246.85-660,273,821.10

Finding the Fourth Proportional to 853,505,768.70, 1,281,215,246.85 and 660,273,821.10

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Solution

The fourth proportional to 853,505,768.70, 1,281,215,246.85 and 660,273,821.10 is: 991,150,754.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,505,768.70 : 1,281,215,246.85 = 660,273,821.10 : x
  2. Step 2: Convert to fraction form
    853,505,768.70/1,281,215,246.85 = 660,273,821.10/x
  3. Step 3: Cross multiply
    853,505,768.70x = 1,281,215,246.85 × 660,273,821.10
  4. Step 4: Simplify right side
    853,505,768.70x = 845,952,886,689,229,184
  5. Step 5: Solve for x
    x = 845,952,886,689,229,184/853,505,768.70
  6. Step 6: Final answer
    x = 991,150,754.58

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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.