Finding the Fourth Proportional to 1,623,043,526.82, 2,239,611,109.83 and 908,618,201.01
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Solution
The fourth proportional to 1,623,043,526.82, 2,239,611,109.83 and 908,618,201.01 is: 1,253,787,334.69
Step by Step Solution
- Step 1: Write the proportion equation
1,623,043,526.82 : 2,239,611,109.83 = 908,618,201.01 : x - Step 2: Convert to fraction form
1,623,043,526.82/2,239,611,109.83 = 908,618,201.01/x - Step 3: Cross multiply
1,623,043,526.82x = 2,239,611,109.83 × 908,618,201.01 - Step 4: Simplify right side
1,623,043,526.82x = 2,034,951,417,575,744,000 - Step 5: Solve for x
x = 2,034,951,417,575,744,000/1,623,043,526.82 - Step 6: Final answer
x = 1,253,787,334.69
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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.