Finding the Fourth Proportional to 7,955,490.42, 11,939,178.60 and 5,390,623.80
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Solution
The fourth proportional to 7,955,490.42, 11,939,178.60 and 5,390,623.80 is: 8,089,962.64
Step by Step Solution
- Step 1: Write the proportion equation
7,955,490.42 : 11,939,178.60 = 5,390,623.80 : x - Step 2: Convert to fraction form
7,955,490.42/11,939,178.60 = 5,390,623.80/x - Step 3: Cross multiply
7,955,490.42x = 11,939,178.60 × 5,390,623.80 - Step 4: Simplify right side
7,955,490.42x = 64,359,620,313,610.67 - Step 5: Solve for x
x = 64,359,620,313,610.67/7,955,490.42 - Step 6: Final answer
x = 8,089,962.64
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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.