Finding the Fourth Proportional to 7,197,365.86, 9,932,364.18 and 3,934,193.70
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Solution
The fourth proportional to 7,197,365.86, 9,932,364.18 and 3,934,193.70 is: 5,429,186.92
Step by Step Solution
- Step 1: Write the proportion equation
7,197,365.86 : 9,932,364.18 = 3,934,193.70 : x - Step 2: Convert to fraction form
7,197,365.86/9,932,364.18 = 3,934,193.70/x - Step 3: Cross multiply
7,197,365.86x = 9,932,364.18 × 3,934,193.70 - Step 4: Simplify right side
7,197,365.86x = 39,075,844,583,061.66 - Step 5: Solve for x
x = 39,075,844,583,061.66/7,197,365.86 - Step 6: Final answer
x = 5,429,186.92
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1.5x scale
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.