Finding the Fourth Proportional to 19,378,063.68, 26,740,444.32 and 11,643,432
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Solution
The fourth proportional to 19,378,063.68, 26,740,444.32 and 11,643,432 is: 16,067,164.93
Step by Step Solution
- Step 1: Write the proportion equation
19,378,063.68 : 26,740,444.32 = 11,643,432 : x - Step 2: Convert to fraction form
19,378,063.68/26,740,444.32 = 11,643,432/x - Step 3: Cross multiply
19,378,063.68x = 26,740,444.32 × 11,643,432 - Step 4: Simplify right side
19,378,063.68x = 311,350,545,089,706.25 - Step 5: Solve for x
x = 311,350,545,089,706.25/19,378,063.68 - Step 6: Final answer
x = 16,067,164.93
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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.