Finding the Fourth Proportional to 15,279,934.50, 21,089,304.99 and 8,757,935.33
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Solution
The fourth proportional to 15,279,934.50, 21,089,304.99 and 8,757,935.33 is: 12,087,667.60
Step by Step Solution
- Step 1: Write the proportion equation
15,279,934.50 : 21,089,304.99 = 8,757,935.33 : x - Step 2: Convert to fraction form
15,279,934.50/21,089,304.99 = 8,757,935.33/x - Step 3: Cross multiply
15,279,934.50x = 21,089,304.99 × 8,757,935.33 - Step 4: Simplify right side
15,279,934.50x = 184,698,769,151,619.75 - Step 5: Solve for x
x = 184,698,769,151,619.75/15,279,934.50 - Step 6: Final answer
x = 12,087,667.60
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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.