Finding the Fourth Proportional to 19,816,764.21, 29,719,765.49 and 5,436,430.83
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Solution
The fourth proportional to 19,816,764.21, 29,719,765.49 and 5,436,430.83 is: 8,153,170.10
Step by Step Solution
- Step 1: Write the proportion equation
19,816,764.21 : 29,719,765.49 = 5,436,430.83 : x - Step 2: Convert to fraction form
19,816,764.21/29,719,765.49 = 5,436,430.83/x - Step 3: Cross multiply
19,816,764.21x = 29,719,765.49 × 5,436,430.83 - Step 4: Simplify right side
19,816,764.21x = 161,569,449,343,023.91 - Step 5: Solve for x
x = 161,569,449,343,023.91/19,816,764.21 - Step 6: Final answer
x = 8,153,170.10
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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.