Finding the Fourth Proportional to 156,863,927.70, 235,295,891.55 and 139,645,239.30
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Solution
The fourth proportional to 156,863,927.70, 235,295,891.55 and 139,645,239.30 is: 209,467,858.95
Step by Step Solution
- Step 1: Write the proportion equation
156,863,927.70 : 235,295,891.55 = 139,645,239.30 : x - Step 2: Convert to fraction form
156,863,927.70/235,295,891.55 = 139,645,239.30/x - Step 3: Cross multiply
156,863,927.70x = 235,295,891.55 × 139,645,239.30 - Step 4: Simplify right side
156,863,927.70x = 32,857,951,081,806,604 - Step 5: Solve for x
x = 32,857,951,081,806,604/156,863,927.70 - Step 6: Final answer
x = 209,467,858.95
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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.