Finding the Fourth Proportional to 76,880,816.31, 106,095,457.35 and 43,397,344.79
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Solution
The fourth proportional to 76,880,816.31, 106,095,457.35 and 43,397,344.79 is: 59,888,296.77
Step by Step Solution
- Step 1: Write the proportion equation
76,880,816.31 : 106,095,457.35 = 43,397,344.79 : x - Step 2: Convert to fraction form
76,880,816.31/106,095,457.35 = 43,397,344.79/x - Step 3: Cross multiply
76,880,816.31x = 106,095,457.35 × 43,397,344.79 - Step 4: Simplify right side
76,880,816.31x = 4,604,261,142,740,212 - Step 5: Solve for x
x = 4,604,261,142,740,212/76,880,816.31 - Step 6: Final answer
x = 59,888,296.77
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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.