Finding the Fourth Proportional to 7,197,960.84, 9,933,188.18 and 3,934,789.96
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Solution
The fourth proportional to 7,197,960.84, 9,933,188.18 and 3,934,789.96 is: 5,430,011.36
Step by Step Solution
- Step 1: Write the proportion equation
7,197,960.84 : 9,933,188.18 = 3,934,789.96 : x - Step 2: Convert to fraction form
7,197,960.84/9,933,188.18 = 3,934,789.96/x - Step 3: Cross multiply
7,197,960.84x = 9,933,188.18 × 3,934,789.96 - Step 4: Simplify right side
7,197,960.84x = 39,085,009,121,454.67 - Step 5: Solve for x
x = 39,085,009,121,454.67/7,197,960.84 - Step 6: Final answer
x = 5,430,011.36
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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.