Finding the Fourth Proportional to 1,623,043,518.83, 2,239,611,098.80 and 908,618,193.01
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Solution
The fourth proportional to 1,623,043,518.83, 2,239,611,098.80 and 908,618,193.01 is: 1,253,787,323.65
Step by Step Solution
- Step 1: Write the proportion equation
1,623,043,518.83 : 2,239,611,098.80 = 908,618,193.01 : x - Step 2: Convert to fraction form
1,623,043,518.83/2,239,611,098.80 = 908,618,193.01/x - Step 3: Cross multiply
1,623,043,518.83x = 2,239,611,098.80 × 908,618,193.01 - Step 4: Simplify right side
1,623,043,518.83x = 2,034,951,389,636,796,672 - Step 5: Solve for x
x = 2,034,951,389,636,796,672/1,623,043,518.83 - Step 6: Final answer
x = 1,253,787,323.65
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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.