Finding the Fourth Proportional to 9,768,910.68, 13,481,924.45 and 5,419,398.11
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Solution
The fourth proportional to 9,768,910.68, 13,481,924.45 and 5,419,398.11 is: 7,479,228.56
Step by Step Solution
- Step 1: Write the proportion equation
9,768,910.68 : 13,481,924.45 = 5,419,398.11 : x - Step 2: Convert to fraction form
9,768,910.68/13,481,924.45 = 5,419,398.11/x - Step 3: Cross multiply
9,768,910.68x = 13,481,924.45 × 5,419,398.11 - Step 4: Simplify right side
9,768,910.68x = 73,063,915,788,986.19 - Step 5: Solve for x
x = 73,063,915,788,986.19/9,768,910.68 - Step 6: Final answer
x = 7,479,228.56
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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.