Home / 21,294,372,655.98-29,232,352,510.38-18,278,389,351.92

Finding the Fourth Proportional to 21,294,372,655.98, 29,232,352,510.38 and 18,278,389,351.92

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Solution

The fourth proportional to 21,294,372,655.98, 29,232,352,510.38 and 18,278,389,351.92 is: 25,092,090,266.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,372,655.98 : 29,232,352,510.38 = 18,278,389,351.92 : x
  2. Step 2: Convert to fraction form
    21,294,372,655.98/29,232,352,510.38 = 18,278,389,351.92/x
  3. Step 3: Cross multiply
    21,294,372,655.98x = 29,232,352,510.38 × 18,278,389,351.92
  4. Step 4: Simplify right side
    21,294,372,655.98x = 534,320,320,857,301,647,360
  5. Step 5: Solve for x
    x = 534,320,320,857,301,647,360/21,294,372,655.98
  6. Step 6: Final answer
    x = 25,092,090,266.73

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1.5x scale

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.