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Finding the Third Proportional to 221,911,412 and 353,416,168

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Solution

The third proportional to 221,911,412 and 353,416,168 is: 562,850,673.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,911,412 : 353,416,168 = 353,416,168 : x
  2. Step 2: Convert to fraction form
    221,911,412/353,416,168 = 353,416,168/x
  3. Step 3: Cross multiply
    221,911,412x = 353,416,168 × 353,416,168
  4. Step 4: Simplify right side
    221,911,412x = 124,902,987,803,804,224
  5. Step 5: Solve for x
    x = 124,902,987,803,804,224/221,911,412
  6. Step 6: Final answer
    x = 562,850,673.96

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.