Finding the Fourth Proportional to 19,148,717.87, 28,719,993.99 and 5,498,759.58
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Solution
The fourth proportional to 19,148,717.87, 28,719,993.99 and 5,498,759.58 is: 8,247,254.11
Step by Step Solution
- Step 1: Write the proportion equation
19,148,717.87 : 28,719,993.99 = 5,498,759.58 : x - Step 2: Convert to fraction form
19,148,717.87/28,719,993.99 = 5,498,759.58/x - Step 3: Cross multiply
19,148,717.87x = 28,719,993.99 × 5,498,759.58 - Step 4: Simplify right side
19,148,717.87x = 157,924,342,090,054.91 - Step 5: Solve for x
x = 157,924,342,090,054.91/19,148,717.87 - Step 6: Final answer
x = 8,247,254.11
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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.