Home / 21,107,970,392.52-31,667,314,815.87-9,771,320,472.33

Finding the Fourth Proportional to 21,107,970,392.52, 31,667,314,815.87 and 9,771,320,472.33

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Solution

The fourth proportional to 21,107,970,392.52, 31,667,314,815.87 and 9,771,320,472.33 is: 14,659,461,606.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107,970,392.52 : 31,667,314,815.87 = 9,771,320,472.33 : x
  2. Step 2: Convert to fraction form
    21,107,970,392.52/31,667,314,815.87 = 9,771,320,472.33/x
  3. Step 3: Cross multiply
    21,107,970,392.52x = 31,667,314,815.87 × 9,771,320,472.33
  4. Step 4: Simplify right side
    21,107,970,392.52x = 309,431,481,563,980,824,576
  5. Step 5: Solve for x
    x = 309,431,481,563,980,824,576/21,107,970,392.52
  6. Step 6: Final answer
    x = 14,659,461,606.68

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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.