Finding the Fourth Proportional to 11,574,991.54, 15,970,230.57 and 9,119,991.70
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Solution
The fourth proportional to 11,574,991.54, 15,970,230.57 and 9,119,991.70 is: 12,583,021.74
Step by Step Solution
- Step 1: Write the proportion equation
11,574,991.54 : 15,970,230.57 = 9,119,991.70 : x - Step 2: Convert to fraction form
11,574,991.54/15,970,230.57 = 9,119,991.70/x - Step 3: Cross multiply
11,574,991.54x = 15,970,230.57 × 9,119,991.70 - Step 4: Simplify right side
11,574,991.54x = 145,648,370,245,486.25 - Step 5: Solve for x
x = 145,648,370,245,486.25/11,574,991.54 - Step 6: Final answer
x = 12,583,021.74
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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.