Finding the Fourth Proportional to 2,551,813,644, 3,521,504,245.68 and 1,378,391,927.52
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Solution
The fourth proportional to 2,551,813,644, 3,521,504,245.68 and 1,378,391,927.52 is: 1,902,181,625.37
Step by Step Solution
- Step 1: Write the proportion equation
2,551,813,644 : 3,521,504,245.68 = 1,378,391,927.52 : x - Step 2: Convert to fraction form
2,551,813,644/3,521,504,245.68 = 1,378,391,927.52/x - Step 3: Cross multiply
2,551,813,644x = 3,521,504,245.68 × 1,378,391,927.52 - Step 4: Simplify right side
2,551,813,644x = 4,854,013,024,972,718,080 - Step 5: Solve for x
x = 4,854,013,024,972,718,080/2,551,813,644 - Step 6: Final answer
x = 1,902,181,625.37
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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.