Home / 217,315,784.40-325,861,702.20-80,930,965.20

Finding the Fourth Proportional to 217,315,784.40, 325,861,702.20 and 80,930,965.20

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Solution

The fourth proportional to 217,315,784.40, 325,861,702.20 and 80,930,965.20 is: 121,354,747.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,315,784.40 : 325,861,702.20 = 80,930,965.20 : x
  2. Step 2: Convert to fraction form
    217,315,784.40/325,861,702.20 = 80,930,965.20/x
  3. Step 3: Cross multiply
    217,315,784.40x = 325,861,702.20 × 80,930,965.20
  4. Step 4: Simplify right side
    217,315,784.40x = 26,372,302,080,760,964
  5. Step 5: Solve for x
    x = 26,372,302,080,760,964/217,315,784.40
  6. Step 6: Final answer
    x = 121,354,747.21

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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.