Finding the Fourth Proportional to 12,579,931.98, 17,317,464.75 and 9,310,585.68
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Solution
The fourth proportional to 12,579,931.98, 17,317,464.75 and 9,310,585.68 is: 12,816,900.73
Step by Step Solution
- Step 1: Write the proportion equation
12,579,931.98 : 17,317,464.75 = 9,310,585.68 : x - Step 2: Convert to fraction form
12,579,931.98/17,317,464.75 = 9,310,585.68/x - Step 3: Cross multiply
12,579,931.98x = 17,317,464.75 × 9,310,585.68 - Step 4: Simplify right side
12,579,931.98x = 161,235,739,315,254.78 - Step 5: Solve for x
x = 161,235,739,315,254.78/12,579,931.98 - Step 6: Final answer
x = 12,816,900.73
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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.