Finding the Fourth Proportional to 7,071,329.84, 9,758,669.64 and 3,974,391.92
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Solution
The fourth proportional to 7,071,329.84, 9,758,669.64 and 3,974,391.92 is: 5,484,792.63
Step by Step Solution
- Step 1: Write the proportion equation
7,071,329.84 : 9,758,669.64 = 3,974,391.92 : x - Step 2: Convert to fraction form
7,071,329.84/9,758,669.64 = 3,974,391.92/x - Step 3: Cross multiply
7,071,329.84x = 9,758,669.64 × 3,974,391.92 - Step 4: Simplify right side
7,071,329.84x = 38,784,777,767,165.31 - Step 5: Solve for x
x = 38,784,777,767,165.31/7,071,329.84 - Step 6: Final answer
x = 5,484,792.63
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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.