Finding the Fourth Proportional to 19,218,447.36, 28,821,739.04 and 5,572,599.59
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Solution
The fourth proportional to 19,218,447.36, 28,821,739.04 and 5,572,599.59 is: 8,357,179.33
Step by Step Solution
- Step 1: Write the proportion equation
19,218,447.36 : 28,821,739.04 = 5,572,599.59 : x - Step 2: Convert to fraction form
19,218,447.36/28,821,739.04 = 5,572,599.59/x - Step 3: Cross multiply
19,218,447.36x = 28,821,739.04 × 5,572,599.59 - Step 4: Simplify right side
19,218,447.36x = 160,612,010,985,419.31 - Step 5: Solve for x
x = 160,612,010,985,419.31/19,218,447.36 - Step 6: Final answer
x = 8,357,179.33
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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.