Home / 220,052,429.10-330,078,643.65-142,568,331.30

Finding the Fourth Proportional to 220,052,429.10, 330,078,643.65 and 142,568,331.30

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Solution

The fourth proportional to 220,052,429.10, 330,078,643.65 and 142,568,331.30 is: 213,852,496.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,052,429.10 : 330,078,643.65 = 142,568,331.30 : x
  2. Step 2: Convert to fraction form
    220,052,429.10/330,078,643.65 = 142,568,331.30/x
  3. Step 3: Cross multiply
    220,052,429.10x = 330,078,643.65 × 142,568,331.30
  4. Step 4: Simplify right side
    220,052,429.10x = 47,058,761,422,947,840
  5. Step 5: Solve for x
    x = 47,058,761,422,947,840/220,052,429.10
  6. Step 6: Final answer
    x = 213,852,496.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.