Finding the Fourth Proportional to 7,387,409.80, 11,081,114.70 and 6,616,030.60
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Solution
The fourth proportional to 7,387,409.80, 11,081,114.70 and 6,616,030.60 is: 9,924,045.90
Step by Step Solution
- Step 1: Write the proportion equation
7,387,409.80 : 11,081,114.70 = 6,616,030.60 : x - Step 2: Convert to fraction form
7,387,409.80/11,081,114.70 = 6,616,030.60/x - Step 3: Cross multiply
7,387,409.80x = 11,081,114.70 × 6,616,030.60 - Step 4: Simplify right side
7,387,409.80x = 73,312,993,937,309.81 - Step 5: Solve for x
x = 73,312,993,937,309.81/7,387,409.80 - Step 6: Final answer
x = 9,924,045.90
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1.5x scale
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.