Finding the Fourth Proportional to 10,991,847.87, 15,168,457.40 and 6,345,476.10
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Solution
The fourth proportional to 10,991,847.87, 15,168,457.40 and 6,345,476.10 is: 8,756,588.07
Step by Step Solution
- Step 1: Write the proportion equation
10,991,847.87 : 15,168,457.40 = 6,345,476.10 : x - Step 2: Convert to fraction form
10,991,847.87/15,168,457.40 = 6,345,476.10/x - Step 3: Cross multiply
10,991,847.87x = 15,168,457.40 × 6,345,476.10 - Step 4: Simplify right side
10,991,847.87x = 96,251,083,873,840.75 - Step 5: Solve for x
x = 96,251,083,873,840.75/10,991,847.87 - Step 6: Final answer
x = 8,756,588.07
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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.