Finding the Fourth Proportional to 212,329,730.97, 318,542,845.50 and 64,790,488.71
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Solution
The fourth proportional to 212,329,730.97, 318,542,845.50 and 64,790,488.71 is: 97,200,455.82
Step by Step Solution
- Step 1: Write the proportion equation
212,329,730.97 : 318,542,845.50 = 64,790,488.71 : x - Step 2: Convert to fraction form
212,329,730.97/318,542,845.50 = 64,790,488.71/x - Step 3: Cross multiply
212,329,730.97x = 318,542,845.50 × 64,790,488.71 - Step 4: Simplify right side
212,329,730.97x = 20,638,546,635,019,024 - Step 5: Solve for x
x = 20,638,546,635,019,024/212,329,730.97 - Step 6: Final answer
x = 97,200,455.82
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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.