Finding the Fourth Proportional to 12,121,705.08, 16,728,305.74 and 6,615,434.13
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Solution
The fourth proportional to 12,121,705.08, 16,728,305.74 and 6,615,434.13 is: 9,129,491.60
Step by Step Solution
- Step 1: Write the proportion equation
12,121,705.08 : 16,728,305.74 = 6,615,434.13 : x - Step 2: Convert to fraction form
12,121,705.08/16,728,305.74 = 6,615,434.13/x - Step 3: Cross multiply
12,121,705.08x = 16,728,305.74 × 6,615,434.13 - Step 4: Simplify right side
12,121,705.08x = 110,665,004,687,412.98 - Step 5: Solve for x
x = 110,665,004,687,412.98/12,121,705.08 - Step 6: Final answer
x = 9,129,491.60
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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.