Finding the Fourth Proportional to 7,769,106.86, 10,717,966.24 and 7,408,907.96
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Solution
The fourth proportional to 7,769,106.86, 10,717,966.24 and 7,408,907.96 is: 10,221,049.45
Step by Step Solution
- Step 1: Write the proportion equation
7,769,106.86 : 10,717,966.24 = 7,408,907.96 : x - Step 2: Convert to fraction form
7,769,106.86/10,717,966.24 = 7,408,907.96/x - Step 3: Cross multiply
7,769,106.86x = 10,717,966.24 × 7,408,907.96 - Step 4: Simplify right side
7,769,106.86x = 79,408,425,318,435.17 - Step 5: Solve for x
x = 79,408,425,318,435.17/7,769,106.86 - Step 6: Final answer
x = 10,221,049.45
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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.