Home / 21,320,534.95-29,422,338.03-11,530,978.85

Finding the Fourth Proportional to 21,320,534.95, 29,422,338.03 and 11,530,978.85

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Solution

The fourth proportional to 21,320,534.95, 29,422,338.03 and 11,530,978.85 is: 15,912,750.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,534.95 : 29,422,338.03 = 11,530,978.85 : x
  2. Step 2: Convert to fraction form
    21,320,534.95/29,422,338.03 = 11,530,978.85/x
  3. Step 3: Cross multiply
    21,320,534.95x = 29,422,338.03 × 11,530,978.85
  4. Step 4: Simplify right side
    21,320,534.95x = 339,268,357,615,036.50
  5. Step 5: Solve for x
    x = 339,268,357,615,036.50/21,320,534.95
  6. Step 6: Final answer
    x = 15,912,750.71

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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.