Home / 2,167,171,947.54-2,990,646,418.29-1,275,156,450.90

Finding the Fourth Proportional to 2,167,171,947.54, 2,990,646,418.29 and 1,275,156,450.90

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Solution

The fourth proportional to 2,167,171,947.54, 2,990,646,418.29 and 1,275,156,450.90 is: 1,759,685,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167,171,947.54 : 2,990,646,418.29 = 1,275,156,450.90 : x
  2. Step 2: Convert to fraction form
    2,167,171,947.54/2,990,646,418.29 = 1,275,156,450.90/x
  3. Step 3: Cross multiply
    2,167,171,947.54x = 2,990,646,418.29 × 1,275,156,450.90
  4. Step 4: Simplify right side
    2,167,171,947.54x = 3,813,542,072,643,473,408
  5. Step 5: Solve for x
    x = 3,813,542,072,643,473,408/2,167,171,947.54
  6. Step 6: Final answer
    x = 1,759,685,970.91

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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.