Finding the Fourth Proportional to 1,641,864,346.40, 2,265,744,795.66 and 889,171,421.96
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Solution
The fourth proportional to 1,641,864,346.40, 2,265,744,795.66 and 889,171,421.96 is: 1,227,041,397.28
Step by Step Solution
- Step 1: Write the proportion equation
1,641,864,346.40 : 2,265,744,795.66 = 889,171,421.96 : x - Step 2: Convert to fraction form
1,641,864,346.40/2,265,744,795.66 = 889,171,421.96/x - Step 3: Cross multiply
1,641,864,346.40x = 2,265,744,795.66 × 889,171,421.96 - Step 4: Simplify right side
1,641,864,346.40x = 2,014,635,521,755,471,872 - Step 5: Solve for x
x = 2,014,635,521,755,471,872/1,641,864,346.40 - Step 6: Final answer
x = 1,227,041,397.28
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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.