Finding the Fourth Proportional to 12,358,052.70, 18,537,079.05 and 7,306,763.10
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Solution
The fourth proportional to 12,358,052.70, 18,537,079.05 and 7,306,763.10 is: 10,960,144.65
Step by Step Solution
- Step 1: Write the proportion equation
12,358,052.70 : 18,537,079.05 = 7,306,763.10 : x - Step 2: Convert to fraction form
12,358,052.70/18,537,079.05 = 7,306,763.10/x - Step 3: Cross multiply
12,358,052.70x = 18,537,079.05 × 7,306,763.10 - Step 4: Simplify right side
12,358,052.70x = 135,446,045,184,323.05 - Step 5: Solve for x
x = 135,446,045,184,323.05/12,358,052.70 - Step 6: Final answer
x = 10,960,144.65
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1.5x scale
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.