Finding the Fourth Proportional to 7,328,208.30, 10,992,312.45 and 5,415,020.70
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Solution
The fourth proportional to 7,328,208.30, 10,992,312.45 and 5,415,020.70 is: 8,122,531.05
Step by Step Solution
- Step 1: Write the proportion equation
7,328,208.30 : 10,992,312.45 = 5,415,020.70 : x - Step 2: Convert to fraction form
7,328,208.30/10,992,312.45 = 5,415,020.70/x - Step 3: Cross multiply
7,328,208.30x = 10,992,312.45 × 5,415,020.70 - Step 4: Simplify right side
7,328,208.30x = 59,523,599,457,617.71 - Step 5: Solve for x
x = 59,523,599,457,617.71/7,328,208.30 - Step 6: Final answer
x = 8,122,531.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.