Finding the Fourth Proportional to 56,380,929.24, 77,807,821.12 and 31,601,574.06
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Solution
The fourth proportional to 56,380,929.24, 77,807,821.12 and 31,601,574.06 is: 43,611,370.99
Step by Step Solution
- Step 1: Write the proportion equation
56,380,929.24 : 77,807,821.12 = 31,601,574.06 : x - Step 2: Convert to fraction form
56,380,929.24/77,807,821.12 = 31,601,574.06/x - Step 3: Cross multiply
56,380,929.24x = 77,807,821.12 × 31,601,574.06 - Step 4: Simplify right side
56,380,929.24x = 2,458,849,621,570,912 - Step 5: Solve for x
x = 2,458,849,621,570,912/56,380,929.24 - Step 6: Final answer
x = 43,611,370.99
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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.