Home / 15,279,945-21,089,319.48-8,757,945.87

Finding the Fourth Proportional to 15,279,945, 21,089,319.48 and 8,757,945.87

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Solution

The fourth proportional to 15,279,945, 21,089,319.48 and 8,757,945.87 is: 12,087,682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279,945 : 21,089,319.48 = 8,757,945.87 : x
  2. Step 2: Convert to fraction form
    15,279,945/21,089,319.48 = 8,757,945.87/x
  3. Step 3: Cross multiply
    15,279,945x = 21,089,319.48 × 8,757,945.87
  4. Step 4: Simplify right side
    15,279,945x = 184,699,118,440,976.53
  5. Step 5: Solve for x
    x = 184,699,118,440,976.53/15,279,945
  6. Step 6: Final answer
    x = 12,087,682.15

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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.