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Finding the Third Proportional to 55,316,322 and 81,180,539

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Solution

The third proportional to 55,316,322 and 81,180,539 is: 119,138,071.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,316,322 : 81,180,539 = 81,180,539 : x
  2. Step 2: Convert to fraction form
    55,316,322/81,180,539 = 81,180,539/x
  3. Step 3: Cross multiply
    55,316,322x = 81,180,539 × 81,180,539
  4. Step 4: Simplify right side
    55,316,322x = 6,590,279,912,330,521
  5. Step 5: Solve for x
    x = 6,590,279,912,330,521/55,316,322
  6. Step 6: Final answer
    x = 119,138,071.26

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.