Finding the Fourth Proportional to 12,643,158.64, 17,446,457.28 and 7,417,220.08
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Solution
The fourth proportional to 12,643,158.64, 17,446,457.28 and 7,417,220.08 is: 10,235,117.42
Step by Step Solution
- Step 1: Write the proportion equation
12,643,158.64 : 17,446,457.28 = 7,417,220.08 : x - Step 2: Convert to fraction form
12,643,158.64/17,446,457.28 = 7,417,220.08/x - Step 3: Cross multiply
12,643,158.64x = 17,446,457.28 × 7,417,220.08 - Step 4: Simplify right side
12,643,158.64x = 129,404,213,262,078.19 - Step 5: Solve for x
x = 129,404,213,262,078.19/12,643,158.64 - Step 6: Final answer
x = 10,235,117.42
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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.