Finding the Fourth Proportional to 19,681,870.44, 27,160,992.77 and 10,980,043.08
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Solution
The fourth proportional to 19,681,870.44, 27,160,992.77 and 10,980,043.08 is: 15,152,465.90
Step by Step Solution
- Step 1: Write the proportion equation
19,681,870.44 : 27,160,992.77 = 10,980,043.08 : x - Step 2: Convert to fraction form
19,681,870.44/27,160,992.77 = 10,980,043.08/x - Step 3: Cross multiply
19,681,870.44x = 27,160,992.77 × 10,980,043.08 - Step 4: Simplify right side
19,681,870.44x = 298,228,870,655,268.31 - Step 5: Solve for x
x = 298,228,870,655,268.31/19,681,870.44 - Step 6: Final answer
x = 15,152,465.90
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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.