Finding the Fourth Proportional to 1,680,517,177.23, 2,316,957,992.42 and 1,377,987,854.32
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Solution
The fourth proportional to 1,680,517,177.23, 2,316,957,992.42 and 1,377,987,854.32 is: 1,899,855,601.47
Step by Step Solution
- Step 1: Write the proportion equation
1,680,517,177.23 : 2,316,957,992.42 = 1,377,987,854.32 : x - Step 2: Convert to fraction form
1,680,517,177.23/2,316,957,992.42 = 1,377,987,854.32/x - Step 3: Cross multiply
1,680,517,177.23x = 2,316,957,992.42 × 1,377,987,854.32 - Step 4: Simplify right side
1,680,517,177.23x = 3,192,739,972,524,410,368 - Step 5: Solve for x
x = 3,192,739,972,524,410,368/1,680,517,177.23 - Step 6: Final answer
x = 1,899,855,601.47
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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.