Home / 3,978,730,465.68-5,490,551,856.69-2,194,545,601.56

Finding the Fourth Proportional to 3,978,730,465.68, 5,490,551,856.69 and 2,194,545,601.56

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Solution

The fourth proportional to 3,978,730,465.68, 5,490,551,856.69 and 2,194,545,601.56 is: 3,028,419,876.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,730,465.68 : 5,490,551,856.69 = 2,194,545,601.56 : x
  2. Step 2: Convert to fraction form
    3,978,730,465.68/5,490,551,856.69 = 2,194,545,601.56/x
  3. Step 3: Cross multiply
    3,978,730,465.68x = 5,490,551,856.69 × 2,194,545,601.56
  4. Step 4: Simplify right side
    3,978,730,465.68x = 12,049,266,427,236,128,768
  5. Step 5: Solve for x
    x = 12,049,266,427,236,128,768/3,978,730,465.68
  6. Step 6: Final answer
    x = 3,028,419,876.94

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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.