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Finding the Fourth Proportional to 217,087,218.80, 304,728,322 and 217,087,218.80

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Solution

The fourth proportional to 217,087,218.80, 304,728,322 and 217,087,218.80 is: 304,728,322

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,087,218.80 : 304,728,322 = 217,087,218.80 : x
  2. Step 2: Convert to fraction form
    217,087,218.80/304,728,322 = 217,087,218.80/x
  3. Step 3: Cross multiply
    217,087,218.80x = 304,728,322 × 217,087,218.80
  4. Step 4: Simplify right side
    217,087,218.80x = 66,152,623,912,570,856
  5. Step 5: Solve for x
    x = 66,152,623,912,570,856/217,087,218.80
  6. Step 6: Final answer
    x = 304,728,322

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.