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Finding the Third Proportional to 218,556,477.38 and 445,892,348.63

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Solution

The third proportional to 218,556,477.38 and 445,892,348.63 is: 909,696,152.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,556,477.38 : 445,892,348.63 = 445,892,348.63 : x
  2. Step 2: Convert to fraction form
    218,556,477.38/445,892,348.63 = 445,892,348.63/x
  3. Step 3: Cross multiply
    218,556,477.38x = 445,892,348.63 × 445,892,348.63
  4. Step 4: Simplify right side
    218,556,477.38x = 198,819,986,562,318,528
  5. Step 5: Solve for x
    x = 198,819,986,562,318,528/218,556,477.38
  6. Step 6: Final answer
    x = 909,696,152.46

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.