Home / 72,322,163.01-99,805,318.02-39,283,058.43

Finding the Fourth Proportional to 72,322,163.01, 99,805,318.02 and 39,283,058.43

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Solution

The fourth proportional to 72,322,163.01, 99,805,318.02 and 39,283,058.43 is: 54,211,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,322,163.01 : 99,805,318.02 = 39,283,058.43 : x
  2. Step 2: Convert to fraction form
    72,322,163.01/99,805,318.02 = 39,283,058.43/x
  3. Step 3: Cross multiply
    72,322,163.01x = 99,805,318.02 × 39,283,058.43
  4. Step 4: Simplify right side
    72,322,163.01x = 3,920,658,139,404,391.50
  5. Step 5: Solve for x
    x = 3,920,658,139,404,391.50/72,322,163.01
  6. Step 6: Final answer
    x = 54,211,018.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.