Finding the Fourth Proportional to 7,872,178.84, 11,808,944.88 and 2,192,403.16
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Solution
The fourth proportional to 7,872,178.84, 11,808,944.88 and 2,192,403.16 is: 3,288,793.18
Step by Step Solution
- Step 1: Write the proportion equation
7,872,178.84 : 11,808,944.88 = 2,192,403.16 : x - Step 2: Convert to fraction form
7,872,178.84/11,808,944.88 = 2,192,403.16/x - Step 3: Cross multiply
7,872,178.84x = 11,808,944.88 × 2,192,403.16 - Step 4: Simplify right side
7,872,178.84x = 25,889,968,071,177.82 - Step 5: Solve for x
x = 25,889,968,071,177.82/7,872,178.84 - Step 6: Final answer
x = 3,288,793.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.