Finding the Fourth Proportional to 7,266,802,906.80, 10,905,306,193.80 and 3,129,215,857.20
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Solution
The fourth proportional to 7,266,802,906.80, 10,905,306,193.80 and 3,129,215,857.20 is: 4,696,020,726.99
Step by Step Solution
- Step 1: Write the proportion equation
7,266,802,906.80 : 10,905,306,193.80 = 3,129,215,857.20 : x - Step 2: Convert to fraction form
7,266,802,906.80/10,905,306,193.80 = 3,129,215,857.20/x - Step 3: Cross multiply
7,266,802,906.80x = 10,905,306,193.80 × 3,129,215,857.20 - Step 4: Simplify right side
7,266,802,906.80x = 34,125,057,069,260,333,056 - Step 5: Solve for x
x = 34,125,057,069,260,333,056/7,266,802,906.80 - Step 6: Final answer
x = 4,696,020,726.99
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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.