Finding the Fourth Proportional to 7,229,046.93, 9,975,449.40 and 4,130,955.49
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Solution
The fourth proportional to 7,229,046.93, 9,975,449.40 and 4,130,955.49 is: 5,700,355.50
Step by Step Solution
- Step 1: Write the proportion equation
7,229,046.93 : 9,975,449.40 = 4,130,955.49 : x - Step 2: Convert to fraction form
7,229,046.93/9,975,449.40 = 4,130,955.49/x - Step 3: Cross multiply
7,229,046.93x = 9,975,449.40 × 4,130,955.49 - Step 4: Simplify right side
7,229,046.93x = 41,208,137,414,269.96 - Step 5: Solve for x
x = 41,208,137,414,269.96/7,229,046.93 - Step 6: Final answer
x = 5,700,355.50
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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.