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Finding the Fourth Proportional to 216,771,626.80, 325,062,961.80 and 87,336,218.80

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Solution

The fourth proportional to 216,771,626.80, 325,062,961.80 and 87,336,218.80 is: 130,966,263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,771,626.80 : 325,062,961.80 = 87,336,218.80 : x
  2. Step 2: Convert to fraction form
    216,771,626.80/325,062,961.80 = 87,336,218.80/x
  3. Step 3: Cross multiply
    216,771,626.80x = 325,062,961.80 × 87,336,218.80
  4. Step 4: Simplify right side
    216,771,626.80x = 28,389,769,955,540,840
  5. Step 5: Solve for x
    x = 28,389,769,955,540,840/216,771,626.80
  6. Step 6: Final answer
    x = 130,966,263.32

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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.