Finding the Fourth Proportional to 7,197,120.37, 9,932,293.61 and 3,934,154.53
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Solution
The fourth proportional to 7,197,120.37, 9,932,293.61 and 3,934,154.53 is: 5,429,279.47
Step by Step Solution
- Step 1: Write the proportion equation
7,197,120.37 : 9,932,293.61 = 3,934,154.53 : x - Step 2: Convert to fraction form
7,197,120.37/9,932,293.61 = 3,934,154.53/x - Step 3: Cross multiply
7,197,120.37x = 9,932,293.61 × 3,934,154.53 - Step 4: Simplify right side
7,197,120.37x = 39,075,177,899,071.55 - Step 5: Solve for x
x = 39,075,177,899,071.55/7,197,120.37 - Step 6: Final answer
x = 5,429,279.47
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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.