Home / 620,886,584.75-856,874,994.26-356,619,575.88

Finding the Fourth Proportional to 620,886,584.75, 856,874,994.26 and 356,619,575.88

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Solution

The fourth proportional to 620,886,584.75, 856,874,994.26 and 356,619,575.88 is: 492,164,599.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,886,584.75 : 856,874,994.26 = 356,619,575.88 : x
  2. Step 2: Convert to fraction form
    620,886,584.75/856,874,994.26 = 356,619,575.88/x
  3. Step 3: Cross multiply
    620,886,584.75x = 856,874,994.26 × 356,619,575.88
  4. Step 4: Simplify right side
    620,886,584.75x = 305,578,397,033,395,520
  5. Step 5: Solve for x
    x = 305,578,397,033,395,520/620,886,584.75
  6. Step 6: Final answer
    x = 492,164,599.04

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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.