Finding the Fourth Proportional to 140,822,930.67, 194,347,278.26 and 78,119,245.05
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Solution
The fourth proportional to 140,822,930.67, 194,347,278.26 and 78,119,245.05 is: 107,811,011.91
Step by Step Solution
- Step 1: Write the proportion equation
140,822,930.67 : 194,347,278.26 = 78,119,245.05 : x - Step 2: Convert to fraction form
140,822,930.67/194,347,278.26 = 78,119,245.05/x - Step 3: Cross multiply
140,822,930.67x = 194,347,278.26 × 78,119,245.05 - Step 4: Simplify right side
140,822,930.67x = 15,182,262,654,752,562 - Step 5: Solve for x
x = 15,182,262,654,752,562/140,822,930.67 - Step 6: Final answer
x = 107,811,011.91
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.