Home / 220,058,147.70-330,087,221.55-143,530,643.70

Finding the Fourth Proportional to 220,058,147.70, 330,087,221.55 and 143,530,643.70

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Solution

The fourth proportional to 220,058,147.70, 330,087,221.55 and 143,530,643.70 is: 215,295,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,058,147.70 : 330,087,221.55 = 143,530,643.70 : x
  2. Step 2: Convert to fraction form
    220,058,147.70/330,087,221.55 = 143,530,643.70/x
  3. Step 3: Cross multiply
    220,058,147.70x = 330,087,221.55 × 143,530,643.70
  4. Step 4: Simplify right side
    220,058,147.70x = 47,377,631,386,216,008
  5. Step 5: Solve for x
    x = 47,377,631,386,216,008/220,058,147.70
  6. Step 6: Final answer
    x = 215,295,965.55

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1.5x scale

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.