Finding the Fourth Proportional to 12,302,426.90, 18,453,640.35 and 11,406,631.70
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Solution
The fourth proportional to 12,302,426.90, 18,453,640.35 and 11,406,631.70 is: 17,109,947.55
Step by Step Solution
- Step 1: Write the proportion equation
12,302,426.90 : 18,453,640.35 = 11,406,631.70 : x - Step 2: Convert to fraction form
12,302,426.90/18,453,640.35 = 11,406,631.70/x - Step 3: Cross multiply
12,302,426.90x = 18,453,640.35 × 11,406,631.70 - Step 4: Simplify right side
12,302,426.90x = 210,493,878,996,709.09 - Step 5: Solve for x
x = 210,493,878,996,709.09/12,302,426.90 - Step 6: Final answer
x = 17,109,947.55
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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.