Finding the Fourth Proportional to 802,938,138.84, 1,108,073,737.62 and 450,540,193.32
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Solution
The fourth proportional to 802,938,138.84, 1,108,073,737.62 and 450,540,193.32 is: 621,756,187.45
Step by Step Solution
- Step 1: Write the proportion equation
802,938,138.84 : 1,108,073,737.62 = 450,540,193.32 : x - Step 2: Convert to fraction form
802,938,138.84/1,108,073,737.62 = 450,540,193.32/x - Step 3: Cross multiply
802,938,138.84x = 1,108,073,737.62 × 450,540,193.32 - Step 4: Simplify right side
802,938,138.84x = 499,231,755,960,129,728 - Step 5: Solve for x
x = 499,231,755,960,129,728/802,938,138.84 - Step 6: Final answer
x = 621,756,187.45
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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.