Home / 21,107,970,394.46-31,667,314,818.77-9,771,320,474.27

Finding the Fourth Proportional to 21,107,970,394.46, 31,667,314,818.77 and 9,771,320,474.27

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Solution

The fourth proportional to 21,107,970,394.46, 31,667,314,818.77 and 9,771,320,474.27 is: 14,659,461,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107,970,394.46 : 31,667,314,818.77 = 9,771,320,474.27 : x
  2. Step 2: Convert to fraction form
    21,107,970,394.46/31,667,314,818.77 = 9,771,320,474.27/x
  3. Step 3: Cross multiply
    21,107,970,394.46x = 31,667,314,818.77 × 9,771,320,474.27
  4. Step 4: Simplify right side
    21,107,970,394.46x = 309,431,481,653,662,253,056
  5. Step 5: Solve for x
    x = 309,431,481,653,662,253,056/21,107,970,394.46
  6. Step 6: Final answer
    x = 14,659,461,609.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.