Finding the Fourth Proportional to 10,403,218.80, 15,586,165.80 and 8,910,226.80
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Solution
The fourth proportional to 10,403,218.80, 15,586,165.80 and 8,910,226.80 is: 13,349,356.09
Step by Step Solution
- Step 1: Write the proportion equation
10,403,218.80 : 15,586,165.80 = 8,910,226.80 : x - Step 2: Convert to fraction form
10,403,218.80/15,586,165.80 = 8,910,226.80/x - Step 3: Cross multiply
10,403,218.80x = 15,586,165.80 × 8,910,226.80 - Step 4: Simplify right side
10,403,218.80x = 138,876,272,220,403.45 - Step 5: Solve for x
x = 138,876,272,220,403.45/10,403,218.80 - Step 6: Final answer
x = 13,349,356.09
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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.