Finding the Fourth Proportional to 1,626,854,409.48, 2,245,304,493.39 and 992,143,130.04
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Solution
The fourth proportional to 1,626,854,409.48, 2,245,304,493.39 and 992,143,130.04 is: 1,369,307,182.61
Step by Step Solution
- Step 1: Write the proportion equation
1,626,854,409.48 : 2,245,304,493.39 = 992,143,130.04 : x - Step 2: Convert to fraction form
1,626,854,409.48/2,245,304,493.39 = 992,143,130.04/x - Step 3: Cross multiply
1,626,854,409.48x = 2,245,304,493.39 × 992,143,130.04 - Step 4: Simplify right side
1,626,854,409.48x = 2,227,663,427,964,830,976 - Step 5: Solve for x
x = 2,227,663,427,964,830,976/1,626,854,409.48 - Step 6: Final answer
x = 1,369,307,182.61
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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.