Finding the Fourth Proportional to 15,299,512.76, 21,113,845.83 and 8,330,460.62
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Solution
The fourth proportional to 15,299,512.76, 21,113,845.83 and 8,330,460.62 is: 11,496,317.81
Step by Step Solution
- Step 1: Write the proportion equation
15,299,512.76 : 21,113,845.83 = 8,330,460.62 : x - Step 2: Convert to fraction form
15,299,512.76/21,113,845.83 = 8,330,460.62/x - Step 3: Cross multiply
15,299,512.76x = 21,113,845.83 × 8,330,460.62 - Step 4: Simplify right side
15,299,512.76x = 175,888,061,117,996.97 - Step 5: Solve for x
x = 175,888,061,117,996.97/15,299,512.76 - Step 6: Final answer
x = 11,496,317.81
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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.