Finding the Fourth Proportional to 5,282,823.85, 7,290,323.81 and 2,991,431.05
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Solution
The fourth proportional to 5,282,823.85, 7,290,323.81 and 2,991,431.05 is: 4,128,190.08
Step by Step Solution
- Step 1: Write the proportion equation
5,282,823.85 : 7,290,323.81 = 2,991,431.05 : x - Step 2: Convert to fraction form
5,282,823.85/7,290,323.81 = 2,991,431.05/x - Step 3: Cross multiply
5,282,823.85x = 7,290,323.81 × 2,991,431.05 - Step 4: Simplify right side
5,282,823.85x = 21,808,501,009,788.30 - Step 5: Solve for x
x = 21,808,501,009,788.30/5,282,823.85 - Step 6: Final answer
x = 4,128,190.08
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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.