Home / 1,642,147,124.64-2,265,595,120.89-1,245,256,663.20

Finding the Fourth Proportional to 1,642,147,124.64, 2,265,595,120.89 and 1,245,256,663.20

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Solution

The fourth proportional to 1,642,147,124.64, 2,265,595,120.89 and 1,245,256,663.20 is: 1,718,023,542.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,147,124.64 : 2,265,595,120.89 = 1,245,256,663.20 : x
  2. Step 2: Convert to fraction form
    1,642,147,124.64/2,265,595,120.89 = 1,245,256,663.20/x
  3. Step 3: Cross multiply
    1,642,147,124.64x = 2,265,595,120.89 × 1,245,256,663.20
  4. Step 4: Simplify right side
    1,642,147,124.64x = 2,821,247,420,401,681,920
  5. Step 5: Solve for x
    x = 2,821,247,420,401,681,920/1,642,147,124.64
  6. Step 6: Final answer
    x = 1,718,023,542.51

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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.