Finding the Fourth Proportional to 1,636,253,181.54, 2,257,964,153.10 and 921,772,091.34
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Solution
The fourth proportional to 1,636,253,181.54, 2,257,964,153.10 and 921,772,091.34 is: 1,272,008,734.99
Step by Step Solution
- Step 1: Write the proportion equation
1,636,253,181.54 : 2,257,964,153.10 = 921,772,091.34 : x - Step 2: Convert to fraction form
1,636,253,181.54/2,257,964,153.10 = 921,772,091.34/x - Step 3: Cross multiply
1,636,253,181.54x = 2,257,964,153.10 × 921,772,091.34 - Step 4: Simplify right side
1,636,253,181.54x = 2,081,328,339,573,739,008 - Step 5: Solve for x
x = 2,081,328,339,573,739,008/1,636,253,181.54 - Step 6: Final answer
x = 1,272,008,734.99
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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.