Home / 3,868,182,630.84-5,338,040,968.08-2,151,520,211.64

Finding the Fourth Proportional to 3,868,182,630.84, 5,338,040,968.08 and 2,151,520,211.64

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Solution

The fourth proportional to 3,868,182,630.84, 5,338,040,968.08 and 2,151,520,211.64 is: 2,969,069,490.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868,182,630.84 : 5,338,040,968.08 = 2,151,520,211.64 : x
  2. Step 2: Convert to fraction form
    3,868,182,630.84/5,338,040,968.08 = 2,151,520,211.64/x
  3. Step 3: Cross multiply
    3,868,182,630.84x = 5,338,040,968.08 × 2,151,520,211.64
  4. Step 4: Simplify right side
    3,868,182,630.84x = 11,484,903,033,386,471,424
  5. Step 5: Solve for x
    x = 11,484,903,033,386,471,424/3,868,182,630.84
  6. Step 6: Final answer
    x = 2,969,069,490.62

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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.