Finding the Fourth Proportional to 106,512,117.20, 159,768,175.80 and 87,364,494.80
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Solution
The fourth proportional to 106,512,117.20, 159,768,175.80 and 87,364,494.80 is: 131,046,742.20
Step by Step Solution
- Step 1: Write the proportion equation
106,512,117.20 : 159,768,175.80 = 87,364,494.80 : x - Step 2: Convert to fraction form
106,512,117.20/159,768,175.80 = 87,364,494.80/x - Step 3: Cross multiply
106,512,117.20x = 159,768,175.80 × 87,364,494.80 - Step 4: Simplify right side
106,512,117.20x = 13,958,065,963,884,586 - Step 5: Solve for x
x = 13,958,065,963,884,586/106,512,117.20 - Step 6: Final answer
x = 131,046,742.20
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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.