Home / 1,620,625,894.90-2,235,601,042.56-985,740,568.72

Finding the Fourth Proportional to 1,620,625,894.90, 2,235,601,042.56 and 985,740,568.72

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Solution

The fourth proportional to 1,620,625,894.90, 2,235,601,042.56 and 985,740,568.72 is: 1,359,797,254.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,625,894.90 : 2,235,601,042.56 = 985,740,568.72 : x
  2. Step 2: Convert to fraction form
    1,620,625,894.90/2,235,601,042.56 = 985,740,568.72/x
  3. Step 3: Cross multiply
    1,620,625,894.90x = 2,235,601,042.56 × 985,740,568.72
  4. Step 4: Simplify right side
    1,620,625,894.90x = 2,203,722,643,124,119,296
  5. Step 5: Solve for x
    x = 2,203,722,643,124,119,296/1,620,625,894.90
  6. Step 6: Final answer
    x = 1,359,797,254.91

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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.