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Finding the Third Proportional to 99,778,607 and 213,346,522

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Solution

The third proportional to 99,778,607 and 213,346,522 is: 456,177,329.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,778,607 : 213,346,522 = 213,346,522 : x
  2. Step 2: Convert to fraction form
    99,778,607/213,346,522 = 213,346,522/x
  3. Step 3: Cross multiply
    99,778,607x = 213,346,522 × 213,346,522
  4. Step 4: Simplify right side
    99,778,607x = 45,516,738,449,496,480
  5. Step 5: Solve for x
    x = 45,516,738,449,496,480/99,778,607
  6. Step 6: Final answer
    x = 456,177,329.17

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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.