Finding the Fourth Proportional to 10,850,530.52, 14,986,159.56 and 7,145,921.99
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Solution
The fourth proportional to 10,850,530.52, 14,986,159.56 and 7,145,921.99 is: 9,869,556.79
Step by Step Solution
- Step 1: Write the proportion equation
10,850,530.52 : 14,986,159.56 = 7,145,921.99 : x - Step 2: Convert to fraction form
10,850,530.52/14,986,159.56 = 7,145,921.99/x - Step 3: Cross multiply
10,850,530.52x = 14,986,159.56 × 7,145,921.99 - Step 4: Simplify right side
10,850,530.52x = 107,089,927,070,521.94 - Step 5: Solve for x
x = 107,089,927,070,521.94/10,850,530.52 - Step 6: Final answer
x = 9,869,556.79
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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.