Home / 76,433,778.09-114,642,081.27-21,109,478.18

Finding the Fourth Proportional to 76,433,778.09, 114,642,081.27 and 21,109,478.18

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Solution

The fourth proportional to 76,433,778.09, 114,642,081.27 and 21,109,478.18 is: 31,661,846.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,433,778.09 : 114,642,081.27 = 21,109,478.18 : x
  2. Step 2: Convert to fraction form
    76,433,778.09/114,642,081.27 = 21,109,478.18/x
  3. Step 3: Cross multiply
    76,433,778.09x = 114,642,081.27 × 21,109,478.18
  4. Step 4: Simplify right side
    76,433,778.09x = 2,420,034,512,505,641.50
  5. Step 5: Solve for x
    x = 2,420,034,512,505,641.50/76,433,778.09
  6. Step 6: Final answer
    x = 31,661,846.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.