Finding the Fourth Proportional to 7,239,438.72, 9,986,730.12 and 4,623,192.72
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Solution
The fourth proportional to 7,239,438.72, 9,986,730.12 and 4,623,192.72 is: 6,377,646.08
Step by Step Solution
- Step 1: Write the proportion equation
7,239,438.72 : 9,986,730.12 = 4,623,192.72 : x - Step 2: Convert to fraction form
7,239,438.72/9,986,730.12 = 4,623,192.72/x - Step 3: Cross multiply
7,239,438.72x = 9,986,730.12 × 4,623,192.72 - Step 4: Simplify right side
7,239,438.72x = 46,170,577,987,388.72 - Step 5: Solve for x
x = 46,170,577,987,388.72/7,239,438.72 - Step 6: Final answer
x = 6,377,646.08
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1.5x scale
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.