Finding the Fourth Proportional to 9,305,139.36, 12,839,192.56 and 5,436,913.12
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Solution
The fourth proportional to 9,305,139.36, 12,839,192.56 and 5,436,913.12 is: 7,501,830.09
Step by Step Solution
- Step 1: Write the proportion equation
9,305,139.36 : 12,839,192.56 = 5,436,913.12 : x - Step 2: Convert to fraction form
9,305,139.36/12,839,192.56 = 5,436,913.12/x - Step 3: Cross multiply
9,305,139.36x = 12,839,192.56 × 5,436,913.12 - Step 4: Simplify right side
9,305,139.36x = 69,805,574,479,670.39 - Step 5: Solve for x
x = 69,805,574,479,670.39/9,305,139.36 - Step 6: Final answer
x = 7,501,830.09
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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.