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Finding the Third Proportional to 90,056,628 and 212,378,550

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Solution

The third proportional to 90,056,628 and 212,378,550 is: 500,847,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,056,628 : 212,378,550 = 212,378,550 : x
  2. Step 2: Convert to fraction form
    90,056,628/212,378,550 = 212,378,550/x
  3. Step 3: Cross multiply
    90,056,628x = 212,378,550 × 212,378,550
  4. Step 4: Simplify right side
    90,056,628x = 45,104,648,500,102,496
  5. Step 5: Solve for x
    x = 45,104,648,500,102,496/90,056,628
  6. Step 6: Final answer
    x = 500,847,627.78

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.