Finding the Fourth Proportional to 15,279,893.70, 21,089,249.07 and 8,757,895.26
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Solution
The fourth proportional to 15,279,893.70, 21,089,249.07 and 8,757,895.26 is: 12,087,612.52
Step by Step Solution
- Step 1: Write the proportion equation
15,279,893.70 : 21,089,249.07 = 8,757,895.26 : x - Step 2: Convert to fraction form
15,279,893.70/21,089,249.07 = 8,757,895.26/x - Step 3: Cross multiply
15,279,893.70x = 21,089,249.07 × 8,757,895.26 - Step 4: Simplify right side
15,279,893.70x = 184,697,434,467,112.41 - Step 5: Solve for x
x = 184,697,434,467,112.41/15,279,893.70 - Step 6: Final answer
x = 12,087,612.52
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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.