Finding the Fourth Proportional to 5,186,726,302.56, 7,157,684,692.35 and 2,807,864,239.92
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Solution
The fourth proportional to 5,186,726,302.56, 7,157,684,692.35 and 2,807,864,239.92 is: 3,874,853,947.54
Step by Step Solution
- Step 1: Write the proportion equation
5,186,726,302.56 : 7,157,684,692.35 = 2,807,864,239.92 : x - Step 2: Convert to fraction form
5,186,726,302.56/7,157,684,692.35 = 2,807,864,239.92/x - Step 3: Cross multiply
5,186,726,302.56x = 7,157,684,692.35 × 2,807,864,239.92 - Step 4: Simplify right side
5,186,726,302.56x = 20,097,806,888,272,355,328 - Step 5: Solve for x
x = 20,097,806,888,272,355,328/5,186,726,302.56 - Step 6: Final answer
x = 3,874,853,947.54
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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.