Home / 7,148,942,676.75-9,865,630,148.18-3,934,222,521.91

Finding the Fourth Proportional to 7,148,942,676.75, 9,865,630,148.18 and 3,934,222,521.91

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Solution

The fourth proportional to 7,148,942,676.75, 9,865,630,148.18 and 3,934,222,521.91 is: 5,429,276,198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148,942,676.75 : 9,865,630,148.18 = 3,934,222,521.91 : x
  2. Step 2: Convert to fraction form
    7,148,942,676.75/9,865,630,148.18 = 3,934,222,521.91/x
  3. Step 3: Cross multiply
    7,148,942,676.75x = 9,865,630,148.18 × 3,934,222,521.91
  4. Step 4: Simplify right side
    7,148,942,676.75x = 38,813,584,321,804,042,240
  5. Step 5: Solve for x
    x = 38,813,584,321,804,042,240/7,148,942,676.75
  6. Step 6: Final answer
    x = 5,429,276,198.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.