Finding the Fourth Proportional to 143,759,063.84, 215,561,876.45 and 74,602,236.47
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Solution
The fourth proportional to 143,759,063.84, 215,561,876.45 and 74,602,236.47 is: 111,863,542.03
Step by Step Solution
- Step 1: Write the proportion equation
143,759,063.84 : 215,561,876.45 = 74,602,236.47 : x - Step 2: Convert to fraction form
143,759,063.84/215,561,876.45 = 74,602,236.47/x - Step 3: Cross multiply
143,759,063.84x = 215,561,876.45 × 74,602,236.47 - Step 4: Simplify right side
143,759,063.84x = 16,081,398,079,389,004 - Step 5: Solve for x
x = 16,081,398,079,389,004/143,759,063.84 - Step 6: Final answer
x = 111,863,542.03
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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.