Finding the Fourth Proportional to 90,415,738.42, 135,610,838.36 and 28,996,916.14
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Solution
The fourth proportional to 90,415,738.42, 135,610,838.36 and 28,996,916.14 is: 43,491,279.02
Step by Step Solution
- Step 1: Write the proportion equation
90,415,738.42 : 135,610,838.36 = 28,996,916.14 : x - Step 2: Convert to fraction form
90,415,738.42/135,610,838.36 = 28,996,916.14/x - Step 3: Cross multiply
90,415,738.42x = 135,610,838.36 × 28,996,916.14 - Step 4: Simplify right side
90,415,738.42x = 3,932,296,107,600,015.50 - Step 5: Solve for x
x = 3,932,296,107,600,015.50/90,415,738.42 - Step 6: Final answer
x = 43,491,279.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.