Home / 55,422,347.32-76,481,517.72-30,978,335.80

Finding the Fourth Proportional to 55,422,347.32, 76,481,517.72 and 30,978,335.80

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Solution

The fourth proportional to 55,422,347.32, 76,481,517.72 and 30,978,335.80 is: 42,749,364.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,422,347.32 : 76,481,517.72 = 30,978,335.80 : x
  2. Step 2: Convert to fraction form
    55,422,347.32/76,481,517.72 = 30,978,335.80/x
  3. Step 3: Cross multiply
    55,422,347.32x = 76,481,517.72 × 30,978,335.80
  4. Step 4: Simplify right side
    55,422,347.32x = 2,369,270,138,423,810.50
  5. Step 5: Solve for x
    x = 2,369,270,138,423,810.50/55,422,347.32
  6. Step 6: Final answer
    x = 42,749,364.71

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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.