Finding the Fourth Proportional to 14,915,995.02, 20,572,408.80 and 9,690,684.48
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Solution
The fourth proportional to 14,915,995.02, 20,572,408.80 and 9,690,684.48 is: 13,365,566.45
Step by Step Solution
- Step 1: Write the proportion equation
14,915,995.02 : 20,572,408.80 = 9,690,684.48 : x - Step 2: Convert to fraction form
14,915,995.02/20,572,408.80 = 9,690,684.48/x - Step 3: Cross multiply
14,915,995.02x = 20,572,408.80 × 9,690,684.48 - Step 4: Simplify right side
14,915,995.02x = 199,360,722,674,375.44 - Step 5: Solve for x
x = 199,360,722,674,375.44/14,915,995.02 - Step 6: Final answer
x = 13,365,566.45
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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.