Home / 3,868,182,628.35-5,338,040,964.63-2,151,520,209.15

Finding the Fourth Proportional to 3,868,182,628.35, 5,338,040,964.63 and 2,151,520,209.15

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Solution

The fourth proportional to 3,868,182,628.35, 5,338,040,964.63 and 2,151,520,209.15 is: 2,969,069,487.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868,182,628.35 : 5,338,040,964.63 = 2,151,520,209.15 : x
  2. Step 2: Convert to fraction form
    3,868,182,628.35/5,338,040,964.63 = 2,151,520,209.15/x
  3. Step 3: Cross multiply
    3,868,182,628.35x = 5,338,040,964.63 × 2,151,520,209.15
  4. Step 4: Simplify right side
    3,868,182,628.35x = 11,484,903,012,672,006,144
  5. Step 5: Solve for x
    x = 11,484,903,012,672,006,144/3,868,182,628.35
  6. Step 6: Final answer
    x = 2,969,069,487.18

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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.