Finding the Fourth Proportional to 247,102,505.42, 341,000,521.71 and 135,595,211.90
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Solution
The fourth proportional to 247,102,505.42, 341,000,521.71 and 135,595,211.90 is: 187,120,878.93
Step by Step Solution
- Step 1: Write the proportion equation
247,102,505.42 : 341,000,521.71 = 135,595,211.90 : x - Step 2: Convert to fraction form
247,102,505.42/341,000,521.71 = 135,595,211.90/x - Step 3: Cross multiply
247,102,505.42x = 341,000,521.71 × 135,595,211.90 - Step 4: Simplify right side
247,102,505.42x = 46,238,037,999,278,000 - Step 5: Solve for x
x = 46,238,037,999,278,000/247,102,505.42 - Step 6: Final answer
x = 187,120,878.93
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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.