Finding the Fourth Proportional to 15,513,921.59, 21,410,184.11 and 8,544,597.75
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Solution
The fourth proportional to 15,513,921.59, 21,410,184.11 and 8,544,597.75 is: 11,792,080.42
Step by Step Solution
- Step 1: Write the proportion equation
15,513,921.59 : 21,410,184.11 = 8,544,597.75 : x - Step 2: Convert to fraction form
15,513,921.59/21,410,184.11 = 8,544,597.75/x - Step 3: Cross multiply
15,513,921.59x = 21,410,184.11 × 8,544,597.75 - Step 4: Simplify right side
15,513,921.59x = 182,941,410,930,668.78 - Step 5: Solve for x
x = 182,941,410,930,668.78/15,513,921.59 - Step 6: Final answer
x = 11,792,080.42
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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.