Finding the Fourth Proportional to 18,298,125.45, 27,447,384.93 and 5,518,740.87
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Solution
The fourth proportional to 18,298,125.45, 27,447,384.93 and 5,518,740.87 is: 8,278,170.65
Step by Step Solution
- Step 1: Write the proportion equation
18,298,125.45 : 27,447,384.93 = 5,518,740.87 : x - Step 2: Convert to fraction form
18,298,125.45/27,447,384.93 = 5,518,740.87/x - Step 3: Cross multiply
18,298,125.45x = 27,447,384.93 × 5,518,740.87 - Step 4: Simplify right side
18,298,125.45x = 151,475,004,987,813.09 - Step 5: Solve for x
x = 151,475,004,987,813.09/18,298,125.45 - Step 6: Final answer
x = 8,278,170.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.