Finding the Fourth Proportional to 18,121,376.18, 25,007,503.09 and 9,972,614.18
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Solution
The fourth proportional to 18,121,376.18, 25,007,503.09 and 9,972,614.18 is: 13,762,209.75
Step by Step Solution
- Step 1: Write the proportion equation
18,121,376.18 : 25,007,503.09 = 9,972,614.18 : x - Step 2: Convert to fraction form
18,121,376.18/25,007,503.09 = 9,972,614.18/x - Step 3: Cross multiply
18,121,376.18x = 25,007,503.09 × 9,972,614.18 - Step 4: Simplify right side
18,121,376.18x = 249,390,179,921,727.81 - Step 5: Solve for x
x = 249,390,179,921,727.81/18,121,376.18 - Step 6: Final answer
x = 13,762,209.75
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1.5x scale
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.