Home / 217,218,668.40-325,828,002.60-148,343,914.80

Finding the Fourth Proportional to 217,218,668.40, 325,828,002.60 and 148,343,914.80

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Solution

The fourth proportional to 217,218,668.40, 325,828,002.60 and 148,343,914.80 is: 222,515,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,218,668.40 : 325,828,002.60 = 148,343,914.80 : x
  2. Step 2: Convert to fraction form
    217,218,668.40/325,828,002.60 = 148,343,914.80/x
  3. Step 3: Cross multiply
    217,218,668.40x = 325,828,002.60 × 148,343,914.80
  4. Step 4: Simplify right side
    217,218,668.40x = 48,334,601,457,148,584
  5. Step 5: Solve for x
    x = 48,334,601,457,148,584/217,218,668.40
  6. Step 6: Final answer
    x = 222,515,872.20

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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.