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Finding the Third Proportional to 155,287,644 and 243,579,408

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Solution

The third proportional to 155,287,644 and 243,579,408 is: 382,071,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,287,644 : 243,579,408 = 243,579,408 : x
  2. Step 2: Convert to fraction form
    155,287,644/243,579,408 = 243,579,408/x
  3. Step 3: Cross multiply
    155,287,644x = 243,579,408 × 243,579,408
  4. Step 4: Simplify right side
    155,287,644x = 59,330,928,001,630,464
  5. Step 5: Solve for x
    x = 59,330,928,001,630,464/155,287,644
  6. Step 6: Final answer
    x = 382,071,145.35

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.