Finding the Fourth Proportional to 7,776,230.90, 11,664,346.35 and 4,920,883.70
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Solution
The fourth proportional to 7,776,230.90, 11,664,346.35 and 4,920,883.70 is: 7,381,325.55
Step by Step Solution
- Step 1: Write the proportion equation
7,776,230.90 : 11,664,346.35 = 4,920,883.70 : x - Step 2: Convert to fraction form
7,776,230.90/11,664,346.35 = 4,920,883.70/x - Step 3: Cross multiply
7,776,230.90x = 11,664,346.35 × 4,920,883.70 - Step 4: Simplify right side
7,776,230.90x = 57,398,891,824,869.49 - Step 5: Solve for x
x = 57,398,891,824,869.49/7,776,230.90 - Step 6: Final answer
x = 7,381,325.55
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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.