Home / 38,709,403.37-53,418,565.77-21,305,374.92

Finding the Fourth Proportional to 38,709,403.37, 53,418,565.77 and 21,305,374.92

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Solution

The fourth proportional to 38,709,403.37, 53,418,565.77 and 21,305,374.92 is: 29,401,191.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,709,403.37 : 53,418,565.77 = 21,305,374.92 : x
  2. Step 2: Convert to fraction form
    38,709,403.37/53,418,565.77 = 21,305,374.92/x
  3. Step 3: Cross multiply
    38,709,403.37x = 53,418,565.77 × 21,305,374.92
  4. Step 4: Simplify right side
    38,709,403.37x = 1,138,102,571,338,633.50
  5. Step 5: Solve for x
    x = 1,138,102,571,338,633.50/38,709,403.37
  6. Step 6: Final answer
    x = 29,401,191.24

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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.