Finding the Fourth Proportional to 1,306,507,104.31, 1,802,974,366.52 and 711,789,737.19
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Solution
The fourth proportional to 1,306,507,104.31, 1,802,974,366.52 and 711,789,737.19 is: 982,266,874.99
Step by Step Solution
- Step 1: Write the proportion equation
1,306,507,104.31 : 1,802,974,366.52 = 711,789,737.19 : x - Step 2: Convert to fraction form
1,306,507,104.31/1,802,974,366.52 = 711,789,737.19/x - Step 3: Cross multiply
1,306,507,104.31x = 1,802,974,366.52 × 711,789,737.19 - Step 4: Simplify right side
1,306,507,104.31x = 1,283,338,650,505,577,728 - Step 5: Solve for x
x = 1,283,338,650,505,577,728/1,306,507,104.31 - Step 6: Final answer
x = 982,266,874.99
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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.