Finding the Fourth Proportional to 12,180,579.53, 16,809,904.69 and 6,673,965.03
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Solution
The fourth proportional to 12,180,579.53, 16,809,904.69 and 6,673,965.03 is: 9,210,457.99
Step by Step Solution
- Step 1: Write the proportion equation
12,180,579.53 : 16,809,904.69 = 6,673,965.03 : x - Step 2: Convert to fraction form
12,180,579.53/16,809,904.69 = 6,673,965.03/x - Step 3: Cross multiply
12,180,579.53x = 16,809,904.69 × 6,673,965.03 - Step 4: Simplify right side
12,180,579.53x = 112,188,716,042,008.08 - Step 5: Solve for x
x = 112,188,716,042,008.08/12,180,579.53 - Step 6: Final answer
x = 9,210,457.99
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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.