Finding the Fourth Proportional to 42,470,583.12, 58,475,168.73 and 38,591,523.09
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Solution
The fourth proportional to 42,470,583.12, 58,475,168.73 and 38,591,523.09 is: 53,134,326.36
Step by Step Solution
- Step 1: Write the proportion equation
42,470,583.12 : 58,475,168.73 = 38,591,523.09 : x - Step 2: Convert to fraction form
42,470,583.12/58,475,168.73 = 38,591,523.09/x - Step 3: Cross multiply
42,470,583.12x = 58,475,168.73 × 38,591,523.09 - Step 4: Simplify right side
42,470,583.12x = 2,256,645,824,235,441 - Step 5: Solve for x
x = 2,256,645,824,235,441/42,470,583.12 - Step 6: Final answer
x = 53,134,326.36
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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.