Finding the Fourth Proportional to 76,555,079.64, 105,646,176.99 and 43,515,531.18
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Solution
The fourth proportional to 76,555,079.64, 105,646,176.99 and 43,515,531.18 is: 60,051,528.00
Step by Step Solution
- Step 1: Write the proportion equation
76,555,079.64 : 105,646,176.99 = 43,515,531.18 : x - Step 2: Convert to fraction form
76,555,079.64/105,646,176.99 = 43,515,531.18/x - Step 3: Cross multiply
76,555,079.64x = 105,646,176.99 × 43,515,531.18 - Step 4: Simplify right side
76,555,079.64x = 4,597,249,508,856,143 - Step 5: Solve for x
x = 4,597,249,508,856,143/76,555,079.64 - Step 6: Final answer
x = 60,051,528.00
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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.