Finding the Fourth Proportional to 134,680,135.42, 185,858,505.74 and 72,800,475.80
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Solution
The fourth proportional to 134,680,135.42, 185,858,505.74 and 72,800,475.80 is: 100,464,612.75
Step by Step Solution
- Step 1: Write the proportion equation
134,680,135.42 : 185,858,505.74 = 72,800,475.80 : x - Step 2: Convert to fraction form
134,680,135.42/185,858,505.74 = 72,800,475.80/x - Step 3: Cross multiply
134,680,135.42x = 185,858,505.74 × 72,800,475.80 - Step 4: Simplify right side
134,680,135.42x = 13,530,587,648,985,030 - Step 5: Solve for x
x = 13,530,587,648,985,030/134,680,135.42 - Step 6: Final answer
x = 100,464,612.75
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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.