Finding the Fourth Proportional to 7,430,410.80, 11,145,616.20 and 6,367,528.80
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Solution
The fourth proportional to 7,430,410.80, 11,145,616.20 and 6,367,528.80 is: 9,551,293.20
Step by Step Solution
- Step 1: Write the proportion equation
7,430,410.80 : 11,145,616.20 = 6,367,528.80 : x - Step 2: Convert to fraction form
7,430,410.80/11,145,616.20 = 6,367,528.80/x - Step 3: Cross multiply
7,430,410.80x = 11,145,616.20 × 6,367,528.80 - Step 4: Simplify right side
7,430,410.80x = 70,970,032,147,246.55 - Step 5: Solve for x
x = 70,970,032,147,246.55/7,430,410.80 - Step 6: Final answer
x = 9,551,293.20
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Double scale
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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.