Home / 445,808,412.80-668,145,748.80-215,281,116.80

Finding the Fourth Proportional to 445,808,412.80, 668,145,748.80 and 215,281,116.80

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Solution

The fourth proportional to 445,808,412.80, 668,145,748.80 and 215,281,116.80 is: 322,647,933.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,808,412.80 : 668,145,748.80 = 215,281,116.80 : x
  2. Step 2: Convert to fraction form
    445,808,412.80/668,145,748.80 = 215,281,116.80/x
  3. Step 3: Cross multiply
    445,808,412.80x = 668,145,748.80 × 215,281,116.80
  4. Step 4: Simplify right side
    445,808,412.80x = 143,839,162,986,836,256
  5. Step 5: Solve for x
    x = 143,839,162,986,836,256/445,808,412.80
  6. Step 6: Final answer
    x = 322,647,933.19

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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.