Home / 15,279,927.75-21,089,295.69-8,757,928.59

Finding the Fourth Proportional to 15,279,927.75, 21,089,295.69 and 8,757,928.59

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Solution

The fourth proportional to 15,279,927.75, 21,089,295.69 and 8,757,928.59 is: 12,087,658.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279,927.75 : 21,089,295.69 = 8,757,928.59 : x
  2. Step 2: Convert to fraction form
    15,279,927.75/21,089,295.69 = 8,757,928.59/x
  3. Step 3: Cross multiply
    15,279,927.75x = 21,089,295.69 × 8,757,928.59
  4. Step 4: Simplify right side
    15,279,927.75x = 184,698,545,666,414.78
  5. Step 5: Solve for x
    x = 184,698,545,666,414.78/15,279,927.75
  6. Step 6: Final answer
    x = 12,087,658.31

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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.