Home / 21,294,372,667.20-29,232,352,525.72-18,278,389,363.12

Finding the Fourth Proportional to 21,294,372,667.20, 29,232,352,525.72 and 18,278,389,363.12

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Solution

The fourth proportional to 21,294,372,667.20, 29,232,352,525.72 and 18,278,389,363.12 is: 25,092,090,282.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,372,667.20 : 29,232,352,525.72 = 18,278,389,363.12 : x
  2. Step 2: Convert to fraction form
    21,294,372,667.20/29,232,352,525.72 = 18,278,389,363.12/x
  3. Step 3: Cross multiply
    21,294,372,667.20x = 29,232,352,525.72 × 18,278,389,363.12
  4. Step 4: Simplify right side
    21,294,372,667.20x = 534,320,321,465,094,504,448
  5. Step 5: Solve for x
    x = 534,320,321,465,094,504,448/21,294,372,667.20
  6. Step 6: Final answer
    x = 25,092,090,282.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.