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Finding the Third Proportional to 255,851,855.72 and 393,019,748.72

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Solution

The third proportional to 255,851,855.72 and 393,019,748.72 is: 603,726,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,851,855.72 : 393,019,748.72 = 393,019,748.72 : x
  2. Step 2: Convert to fraction form
    255,851,855.72/393,019,748.72 = 393,019,748.72/x
  3. Step 3: Cross multiply
    255,851,855.72x = 393,019,748.72 × 393,019,748.72
  4. Step 4: Simplify right side
    255,851,855.72x = 154,464,522,882,949,408
  5. Step 5: Solve for x
    x = 154,464,522,882,949,408/255,851,855.72
  6. Step 6: Final answer
    x = 603,726,412.10

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.