Home / 21,143,724,858.02-31,729,559,757.08-9,954,798,849.09

Finding the Fourth Proportional to 21,143,724,858.02, 31,729,559,757.08 and 9,954,798,849.09

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Solution

The fourth proportional to 21,143,724,858.02, 31,729,559,757.08 and 9,954,798,849.09 is: 14,938,776,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,143,724,858.02 : 31,729,559,757.08 = 9,954,798,849.09 : x
  2. Step 2: Convert to fraction form
    21,143,724,858.02/31,729,559,757.08 = 9,954,798,849.09/x
  3. Step 3: Cross multiply
    21,143,724,858.02x = 31,729,559,757.08 × 9,954,798,849.09
  4. Step 4: Simplify right side
    21,143,724,858.02x = 315,861,384,951,703,928,832
  5. Step 5: Solve for x
    x = 315,861,384,951,703,928,832/21,143,724,858.02
  6. Step 6: Final answer
    x = 14,938,776,732.70

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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.