Finding the Fourth Proportional to 943,699,385.70, 1,302,863,789.88 and 838,988,236.80
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Solution
The fourth proportional to 943,699,385.70, 1,302,863,789.88 and 838,988,236.80 is: 1,158,300,419.00
Step by Step Solution
- Step 1: Write the proportion equation
943,699,385.70 : 1,302,863,789.88 = 838,988,236.80 : x - Step 2: Convert to fraction form
943,699,385.70/1,302,863,789.88 = 838,988,236.80/x - Step 3: Cross multiply
943,699,385.70x = 1,302,863,789.88 × 838,988,236.80 - Step 4: Simplify right side
943,699,385.70x = 1,093,087,393,861,986,944 - Step 5: Solve for x
x = 1,093,087,393,861,986,944/943,699,385.70 - Step 6: Final answer
x = 1,158,300,419.00
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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.