Finding the Fourth Proportional to 7,779,795.62, 10,726,138.04 and 6,379,197.08
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Solution
The fourth proportional to 7,779,795.62, 10,726,138.04 and 6,379,197.08 is: 8,795,108.74
Step by Step Solution
- Step 1: Write the proportion equation
7,779,795.62 : 10,726,138.04 = 6,379,197.08 : x - Step 2: Convert to fraction form
7,779,795.62/10,726,138.04 = 6,379,197.08/x - Step 3: Cross multiply
7,779,795.62x = 10,726,138.04 × 6,379,197.08 - Step 4: Simplify right side
7,779,795.62x = 68,424,148,464,444.92 - Step 5: Solve for x
x = 68,424,148,464,444.92/7,779,795.62 - Step 6: Final answer
x = 8,795,108.74
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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.