Home / 384,597,643.26-530,744,947.37-208,385,777.73

Finding the Fourth Proportional to 384,597,643.26, 530,744,947.37 and 208,385,777.73

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Solution

The fourth proportional to 384,597,643.26, 530,744,947.37 and 208,385,777.73 is: 287,572,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,597,643.26 : 530,744,947.37 = 208,385,777.73 : x
  2. Step 2: Convert to fraction form
    384,597,643.26/530,744,947.37 = 208,385,777.73/x
  3. Step 3: Cross multiply
    384,597,643.26x = 530,744,947.37 × 208,385,777.73
  4. Step 4: Simplify right side
    384,597,643.26x = 110,599,698,633,965,360
  5. Step 5: Solve for x
    x = 110,599,698,633,965,360/384,597,643.26
  6. Step 6: Final answer
    x = 287,572,481.45

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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.