Finding the Fourth Proportional to 146,916,101.80, 220,374,152.70 and 131,043,730.60
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Solution
The fourth proportional to 146,916,101.80, 220,374,152.70 and 131,043,730.60 is: 196,565,595.90
Step by Step Solution
- Step 1: Write the proportion equation
146,916,101.80 : 220,374,152.70 = 131,043,730.60 : x - Step 2: Convert to fraction form
146,916,101.80/220,374,152.70 = 131,043,730.60/x - Step 3: Cross multiply
146,916,101.80x = 220,374,152.70 × 131,043,730.60 - Step 4: Simplify right side
146,916,101.80x = 28,878,651,097,622,060 - Step 5: Solve for x
x = 28,878,651,097,622,060/146,916,101.80 - Step 6: Final answer
x = 196,565,595.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.