Home / 2,128,275,310.80-2,938,401,911.70-1,904,870,111.52

Finding the Fourth Proportional to 2,128,275,310.80, 2,938,401,911.70 and 1,904,870,111.52

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Solution

The fourth proportional to 2,128,275,310.80, 2,938,401,911.70 and 1,904,870,111.52 is: 2,629,957,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,275,310.80 : 2,938,401,911.70 = 1,904,870,111.52 : x
  2. Step 2: Convert to fraction form
    2,128,275,310.80/2,938,401,911.70 = 1,904,870,111.52/x
  3. Step 3: Cross multiply
    2,128,275,310.80x = 2,938,401,911.70 × 1,904,870,111.52
  4. Step 4: Simplify right side
    2,128,275,310.80x = 5,597,273,977,230,560,256
  5. Step 5: Solve for x
    x = 5,597,273,977,230,560,256/2,128,275,310.80
  6. Step 6: Final answer
    x = 2,629,957,669.87

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1.5x scale

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.