Finding the Fourth Proportional to 12,186,951.12, 16,817,579.64 and 7,030,180.08
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Solution
The fourth proportional to 12,186,951.12, 16,817,579.64 and 7,030,180.08 is: 9,701,410.32
Step by Step Solution
- Step 1: Write the proportion equation
12,186,951.12 : 16,817,579.64 = 7,030,180.08 : x - Step 2: Convert to fraction form
12,186,951.12/16,817,579.64 = 7,030,180.08/x - Step 3: Cross multiply
12,186,951.12x = 16,817,579.64 × 7,030,180.08 - Step 4: Simplify right side
12,186,951.12x = 118,230,613,378,941.58 - Step 5: Solve for x
x = 118,230,613,378,941.58/12,186,951.12 - Step 6: Final answer
x = 9,701,410.32
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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.