Finding the Fourth Proportional to 147,495,408.90, 203,543,631.72 and 81,415,889.97
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Solution
The fourth proportional to 147,495,408.90, 203,543,631.72 and 81,415,889.97 is: 112,353,910.18
Step by Step Solution
- Step 1: Write the proportion equation
147,495,408.90 : 203,543,631.72 = 81,415,889.97 : x - Step 2: Convert to fraction form
147,495,408.90/203,543,631.72 = 81,415,889.97/x - Step 3: Cross multiply
147,495,408.90x = 203,543,631.72 × 81,415,889.97 - Step 4: Simplify right side
147,495,408.90x = 16,571,685,924,209,722 - Step 5: Solve for x
x = 16,571,685,924,209,722/147,495,408.90 - Step 6: Final answer
x = 112,353,910.18
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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.