Finding the Fourth Proportional to 11,262,421.75, 15,554,972.43 and 7,634,451.19
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Solution
The fourth proportional to 11,262,421.75, 15,554,972.43 and 7,634,451.19 is: 10,544,239.99
Step by Step Solution
- Step 1: Write the proportion equation
11,262,421.75 : 15,554,972.43 = 7,634,451.19 : x - Step 2: Convert to fraction form
11,262,421.75/15,554,972.43 = 7,634,451.19/x - Step 3: Cross multiply
11,262,421.75x = 15,554,972.43 × 7,634,451.19 - Step 4: Simplify right side
11,262,421.75x = 118,753,677,778,630.70 - Step 5: Solve for x
x = 118,753,677,778,630.70/11,262,421.75 - Step 6: Final answer
x = 10,544,239.99
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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.