Finding the Fourth Proportional to 168,805,979.70, 253,173,539.66 and 47,609,088.18
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Solution
The fourth proportional to 168,805,979.70, 253,173,539.66 and 47,609,088.18 is: 71,403,639.82
Step by Step Solution
- Step 1: Write the proportion equation
168,805,979.70 : 253,173,539.66 = 47,609,088.18 : x - Step 2: Convert to fraction form
168,805,979.70/253,173,539.66 = 47,609,088.18/x - Step 3: Cross multiply
168,805,979.70x = 253,173,539.66 × 47,609,088.18 - Step 4: Simplify right side
168,805,979.70x = 12,053,361,374,277,622 - Step 5: Solve for x
x = 12,053,361,374,277,622/168,805,979.70 - Step 6: Final answer
x = 71,403,639.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.