Finding the Fourth Proportional to 18,686,319.68, 25,787,192.42 and 10,426,730.08
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Solution
The fourth proportional to 18,686,319.68, 25,787,192.42 and 10,426,730.08 is: 14,388,927.27
Step by Step Solution
- Step 1: Write the proportion equation
18,686,319.68 : 25,787,192.42 = 10,426,730.08 : x - Step 2: Convert to fraction form
18,686,319.68/25,787,192.42 = 10,426,730.08/x - Step 3: Cross multiply
18,686,319.68x = 25,787,192.42 × 10,426,730.08 - Step 4: Simplify right side
18,686,319.68x = 268,876,094,884,362 - Step 5: Solve for x
x = 268,876,094,884,362/18,686,319.68 - Step 6: Final answer
x = 14,388,927.27
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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.