Finding the Fourth Proportional to 10,512,117.80, 15,768,176.70 and 10,512,117.80
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Solution
The fourth proportional to 10,512,117.80, 15,768,176.70 and 10,512,117.80 is: 15,768,176.70
Step by Step Solution
- Step 1: Write the proportion equation
10,512,117.80 : 15,768,176.70 = 10,512,117.80 : x - Step 2: Convert to fraction form
10,512,117.80/15,768,176.70 = 10,512,117.80/x - Step 3: Cross multiply
10,512,117.80x = 15,768,176.70 × 10,512,117.80 - Step 4: Simplify right side
10,512,117.80x = 165,756,930,961,615.25 - Step 5: Solve for x
x = 165,756,930,961,615.25/10,512,117.80 - Step 6: Final answer
x = 15,768,176.70
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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.