Home / 445,808,350.80-668,145,655.80-215,281,054.80

Finding the Fourth Proportional to 445,808,350.80, 668,145,655.80 and 215,281,054.80

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Solution

The fourth proportional to 445,808,350.80, 668,145,655.80 and 215,281,054.80 is: 322,647,840.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,808,350.80 : 668,145,655.80 = 215,281,054.80 : x
  2. Step 2: Convert to fraction form
    445,808,350.80/668,145,655.80 = 215,281,054.80/x
  3. Step 3: Cross multiply
    445,808,350.80x = 668,145,655.80 × 215,281,054.80
  4. Step 4: Simplify right side
    445,808,350.80x = 143,839,101,540,661,728
  5. Step 5: Solve for x
    x = 143,839,101,540,661,728/445,808,350.80
  6. Step 6: Final answer
    x = 322,647,840.23

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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.