Finding the Fourth Proportional to 811,521,762.33, 1,119,805,553.43 and 454,309,099.44
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Solution
The fourth proportional to 811,521,762.33, 1,119,805,553.43 and 454,309,099.44 is: 626,893,665.88
Step by Step Solution
- Step 1: Write the proportion equation
811,521,762.33 : 1,119,805,553.43 = 454,309,099.44 : x - Step 2: Convert to fraction form
811,521,762.33/1,119,805,553.43 = 454,309,099.44/x - Step 3: Cross multiply
811,521,762.33x = 1,119,805,553.43 × 454,309,099.44 - Step 4: Simplify right side
811,521,762.33x = 508,737,852,526,694,144 - Step 5: Solve for x
x = 508,737,852,526,694,144/811,521,762.33 - Step 6: Final answer
x = 626,893,665.88
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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.