Finding the Fourth Proportional to 7,149,015.86, 9,865,707.93 and 3,885,838.26
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Solution
The fourth proportional to 7,149,015.86, 9,865,707.93 and 3,885,838.26 is: 5,362,492.70
Step by Step Solution
- Step 1: Write the proportion equation
7,149,015.86 : 9,865,707.93 = 3,885,838.26 : x - Step 2: Convert to fraction form
7,149,015.86/9,865,707.93 = 3,885,838.26/x - Step 3: Cross multiply
7,149,015.86x = 9,865,707.93 × 3,885,838.26 - Step 4: Simplify right side
7,149,015.86x = 38,336,545,336,379.40 - Step 5: Solve for x
x = 38,336,545,336,379.40/7,149,015.86 - Step 6: Final answer
x = 5,362,492.70
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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.