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Finding the Fourth Proportional to 21,090,202,947,068, 31,635,304,420,604 and 21,090,202,947,068

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Solution

The fourth proportional to 21,090,202,947,068, 31,635,304,420,604 and 21,090,202,947,068 is: 31,635,304,420,604.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090,202,947,068 : 31,635,304,420,604 = 21,090,202,947,068 : x
  2. Step 2: Convert to fraction form
    21,090,202,947,068/31,635,304,420,604 = 21,090,202,947,068/x
  3. Step 3: Cross multiply
    21,090,202,947,068x = 31,635,304,420,604 × 21,090,202,947,068
  4. Step 4: Simplify right side
    21,090,202,947,068x = 667,194,990,522,815,758,142,013,440
  5. Step 5: Solve for x
    x = 667,194,990,522,815,758,142,013,440/21,090,202,947,068
  6. Step 6: Final answer
    x = 31,635,304,420,604.00

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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.