Finding the Fourth Proportional to 118,591,732.08, 163,647,654.77 and 72,176,856.12
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Solution
The fourth proportional to 118,591,732.08, 163,647,654.77 and 72,176,856.12 is: 99,598,623.15
Step by Step Solution
- Step 1: Write the proportion equation
118,591,732.08 : 163,647,654.77 = 72,176,856.12 : x - Step 2: Convert to fraction form
118,591,732.08/163,647,654.77 = 72,176,856.12/x - Step 3: Cross multiply
118,591,732.08x = 163,647,654.77 × 72,176,856.12 - Step 4: Simplify right side
118,591,732.08x = 11,811,573,232,348,838 - Step 5: Solve for x
x = 11,811,573,232,348,838/118,591,732.08 - Step 6: Final answer
x = 99,598,623.15
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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.