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Finding the Third Proportional to 196,524,280 and 420,655,548

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Solution

The third proportional to 196,524,280 and 420,655,548 is: 900,403,197.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,524,280 : 420,655,548 = 420,655,548 : x
  2. Step 2: Convert to fraction form
    196,524,280/420,655,548 = 420,655,548/x
  3. Step 3: Cross multiply
    196,524,280x = 420,655,548 × 420,655,548
  4. Step 4: Simplify right side
    196,524,280x = 176,951,090,063,180,288
  5. Step 5: Solve for x
    x = 176,951,090,063,180,288/196,524,280
  6. Step 6: Final answer
    x = 900,403,197.32

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.