Home / 21,107,970,397.24-31,667,314,822.94-9,771,320,477.05

Finding the Fourth Proportional to 21,107,970,397.24, 31,667,314,822.94 and 9,771,320,477.05

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Solution

The fourth proportional to 21,107,970,397.24, 31,667,314,822.94 and 9,771,320,477.05 is: 14,659,461,613.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107,970,397.24 : 31,667,314,822.94 = 9,771,320,477.05 : x
  2. Step 2: Convert to fraction form
    21,107,970,397.24/31,667,314,822.94 = 9,771,320,477.05/x
  3. Step 3: Cross multiply
    21,107,970,397.24x = 31,667,314,822.94 × 9,771,320,477.05
  4. Step 4: Simplify right side
    21,107,970,397.24x = 309,431,481,782,582,575,104
  5. Step 5: Solve for x
    x = 309,431,481,782,582,575,104/21,107,970,397.24
  6. Step 6: Final answer
    x = 14,659,461,613.75

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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.