Finding the Fourth Proportional to 13,138,725.60, 19,694,674.80 and 8,879,324.40
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Solution
The fourth proportional to 13,138,725.60, 19,694,674.80 and 8,879,324.40 is: 13,309,921.51
Step by Step Solution
- Step 1: Write the proportion equation
13,138,725.60 : 19,694,674.80 = 8,879,324.40 : x - Step 2: Convert to fraction form
13,138,725.60/19,694,674.80 = 8,879,324.40/x - Step 3: Cross multiply
13,138,725.60x = 19,694,674.80 × 8,879,324.40 - Step 4: Simplify right side
13,138,725.60x = 174,875,406,501,705.12 - Step 5: Solve for x
x = 174,875,406,501,705.12/13,138,725.60 - Step 6: Final answer
x = 13,309,921.51
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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.