Finding the Fourth Proportional to 90,992,490.36, 125,538,976.26 and 51,806,541.18
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Solution
The fourth proportional to 90,992,490.36, 125,538,976.26 and 51,806,541.18 is: 71,475,570.32
Step by Step Solution
- Step 1: Write the proportion equation
90,992,490.36 : 125,538,976.26 = 51,806,541.18 : x - Step 2: Convert to fraction form
90,992,490.36/125,538,976.26 = 51,806,541.18/x - Step 3: Cross multiply
90,992,490.36x = 125,538,976.26 × 51,806,541.18 - Step 4: Simplify right side
90,992,490.36x = 6,503,740,143,308,733 - Step 5: Solve for x
x = 6,503,740,143,308,733/90,992,490.36 - Step 6: Final answer
x = 71,475,570.32
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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.