Finding the Fourth Proportional to 10,927,649.98, 15,082,131.45 and 6,517,658.62
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Solution
The fourth proportional to 10,927,649.98, 15,082,131.45 and 6,517,658.62 is: 8,995,546.55
Step by Step Solution
- Step 1: Write the proportion equation
10,927,649.98 : 15,082,131.45 = 6,517,658.62 : x - Step 2: Convert to fraction form
10,927,649.98/15,082,131.45 = 6,517,658.62/x - Step 3: Cross multiply
10,927,649.98x = 15,082,131.45 × 6,517,658.62 - Step 4: Simplify right side
10,927,649.98x = 98,300,184,053,065.59 - Step 5: Solve for x
x = 98,300,184,053,065.59/10,927,649.98 - Step 6: Final answer
x = 8,995,546.55
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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.