Home / 3,419,353,856.21-4,718,756,512.64-1,970,128,763.29

Finding the Fourth Proportional to 3,419,353,856.21, 4,718,756,512.64 and 1,970,128,763.29

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Solution

The fourth proportional to 3,419,353,856.21, 4,718,756,512.64 and 1,970,128,763.29 is: 2,718,805,459.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419,353,856.21 : 4,718,756,512.64 = 1,970,128,763.29 : x
  2. Step 2: Convert to fraction form
    3,419,353,856.21/4,718,756,512.64 = 1,970,128,763.29/x
  3. Step 3: Cross multiply
    3,419,353,856.21x = 4,718,756,512.64 × 1,970,128,763.29
  4. Step 4: Simplify right side
    3,419,353,856.21x = 9,296,557,932,524,662,784
  5. Step 5: Solve for x
    x = 9,296,557,932,524,662,784/3,419,353,856.21
  6. Step 6: Final answer
    x = 2,718,805,459.59

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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.