Finding the Fourth Proportional to 76,968,588.56, 106,176,382.54 and 47,590,530.08
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Solution
The fourth proportional to 76,968,588.56, 106,176,382.54 and 47,590,530.08 is: 65,650,032.32
Step by Step Solution
- Step 1: Write the proportion equation
76,968,588.56 : 106,176,382.54 = 47,590,530.08 : x - Step 2: Convert to fraction form
76,968,588.56/106,176,382.54 = 47,590,530.08/x - Step 3: Cross multiply
76,968,588.56x = 106,176,382.54 × 47,590,530.08 - Step 4: Simplify right side
76,968,588.56x = 5,052,990,326,405,599 - Step 5: Solve for x
x = 5,052,990,326,405,599/76,968,588.56 - Step 6: Final answer
x = 65,650,032.32
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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.