Finding the Fourth Proportional to 209,953,847.70, 314,930,771.55 and 158,935,511.70
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Solution
The fourth proportional to 209,953,847.70, 314,930,771.55 and 158,935,511.70 is: 238,403,267.55
Step by Step Solution
- Step 1: Write the proportion equation
209,953,847.70 : 314,930,771.55 = 158,935,511.70 : x - Step 2: Convert to fraction form
209,953,847.70/314,930,771.55 = 158,935,511.70/x - Step 3: Cross multiply
209,953,847.70x = 314,930,771.55 × 158,935,511.70 - Step 4: Simplify right side
209,953,847.70x = 50,053,683,326,375,048 - Step 5: Solve for x
x = 50,053,683,326,375,048/209,953,847.70 - Step 6: Final answer
x = 238,403,267.55
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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.