Finding the Fourth Proportional to 18,216,670.95, 27,320,975.50 and 5,260,009.05
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Solution
The fourth proportional to 18,216,670.95, 27,320,975.50 and 5,260,009.05 is: 7,888,849.66
Step by Step Solution
- Step 1: Write the proportion equation
18,216,670.95 : 27,320,975.50 = 5,260,009.05 : x - Step 2: Convert to fraction form
18,216,670.95/27,320,975.50 = 5,260,009.05/x - Step 3: Cross multiply
18,216,670.95x = 27,320,975.50 × 5,260,009.05 - Step 4: Simplify right side
18,216,670.95x = 143,708,578,384,828.28 - Step 5: Solve for x
x = 143,708,578,384,828.28/18,216,670.95 - Step 6: Final answer
x = 7,888,849.66
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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.