Finding the Fourth Proportional to 9,968,557.74, 13,756,621.93 and 5,384,879.12
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Solution
The fourth proportional to 9,968,557.74, 13,756,621.93 and 5,384,879.12 is: 7,431,139.80
Step by Step Solution
- Step 1: Write the proportion equation
9,968,557.74 : 13,756,621.93 = 5,384,879.12 : x - Step 2: Convert to fraction form
9,968,557.74/13,756,621.93 = 5,384,879.12/x - Step 3: Cross multiply
9,968,557.74x = 13,756,621.93 × 5,384,879.12 - Step 4: Simplify right side
9,968,557.74x = 74,077,746,192,591.09 - Step 5: Solve for x
x = 74,077,746,192,591.09/9,968,557.74 - Step 6: Final answer
x = 7,431,139.80
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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.