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Finding the Third Proportional to 5,421,855 and 7,228,335

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Solution

The third proportional to 5,421,855 and 7,228,335 is: 9,636,706.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421,855 : 7,228,335 = 7,228,335 : x
  2. Step 2: Convert to fraction form
    5,421,855/7,228,335 = 7,228,335/x
  3. Step 3: Cross multiply
    5,421,855x = 7,228,335 × 7,228,335
  4. Step 4: Simplify right side
    5,421,855x = 52,248,826,872,225
  5. Step 5: Solve for x
    x = 52,248,826,872,225/5,421,855
  6. Step 6: Final answer
    x = 9,636,706.79

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.