Finding the Fourth Proportional to 389,247,213.08, 537,162,577.68 and 210,631,103.01
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Solution
The fourth proportional to 389,247,213.08, 537,162,577.68 and 210,631,103.01 is: 290,671,692.52
Step by Step Solution
- Step 1: Write the proportion equation
389,247,213.08 : 537,162,577.68 = 210,631,103.01 : x - Step 2: Convert to fraction form
389,247,213.08/537,162,577.68 = 210,631,103.01/x - Step 3: Cross multiply
389,247,213.08x = 537,162,577.68 × 210,631,103.01 - Step 4: Simplify right side
389,247,213.08x = 113,143,146,232,433,184 - Step 5: Solve for x
x = 113,143,146,232,433,184/389,247,213.08 - Step 6: Final answer
x = 290,671,692.52
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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.