Finding the Fourth Proportional to 1,879,676,173.92, 2,590,669,675.44 and 1,376,816,625.12
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Solution
The fourth proportional to 1,879,676,173.92, 2,590,669,675.44 and 1,376,816,625.12 is: 1,897,601,900.17
Step by Step Solution
- Step 1: Write the proportion equation
1,879,676,173.92 : 2,590,669,675.44 = 1,376,816,625.12 : x - Step 2: Convert to fraction form
1,879,676,173.92/2,590,669,675.44 = 1,376,816,625.12/x - Step 3: Cross multiply
1,879,676,173.92x = 2,590,669,675.44 × 1,376,816,625.12 - Step 4: Simplify right side
1,879,676,173.92x = 3,566,877,079,340,026,368 - Step 5: Solve for x
x = 3,566,877,079,340,026,368/1,879,676,173.92 - Step 6: Final answer
x = 1,897,601,900.17
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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.