Home / 2,128,275,311.80-2,938,401,913.08-1,904,870,112.52

Finding the Fourth Proportional to 2,128,275,311.80, 2,938,401,913.08 and 1,904,870,112.52

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Solution

The fourth proportional to 2,128,275,311.80, 2,938,401,913.08 and 1,904,870,112.52 is: 2,629,957,671.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,275,311.80 : 2,938,401,913.08 = 1,904,870,112.52 : x
  2. Step 2: Convert to fraction form
    2,128,275,311.80/2,938,401,913.08 = 1,904,870,112.52/x
  3. Step 3: Cross multiply
    2,128,275,311.80x = 2,938,401,913.08 × 1,904,870,112.52
  4. Step 4: Simplify right side
    2,128,275,311.80x = 5,597,273,982,797,682,688
  5. Step 5: Solve for x
    x = 5,597,273,982,797,682,688/2,128,275,311.80
  6. Step 6: Final answer
    x = 2,629,957,671.25

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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.