Home / 15,279,928.75-21,089,297.07-8,757,929.59

Finding the Fourth Proportional to 15,279,928.75, 21,089,297.07 and 8,757,929.59

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Solution

The fourth proportional to 15,279,928.75, 21,089,297.07 and 8,757,929.59 is: 12,087,659.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279,928.75 : 21,089,297.07 = 8,757,929.59 : x
  2. Step 2: Convert to fraction form
    15,279,928.75/21,089,297.07 = 8,757,929.59/x
  3. Step 3: Cross multiply
    15,279,928.75x = 21,089,297.07 × 8,757,929.59
  4. Step 4: Simplify right side
    15,279,928.75x = 184,698,578,841,653.31
  5. Step 5: Solve for x
    x = 184,698,578,841,653.31/15,279,928.75
  6. Step 6: Final answer
    x = 12,087,659.69

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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.