Finding the Fourth Proportional to 81,077,394.44, 121,810,108.72 and 51,988,225.70
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Solution
The fourth proportional to 81,077,394.44, 121,810,108.72 and 51,988,225.70 is: 78,106,745.64
Step by Step Solution
- Step 1: Write the proportion equation
81,077,394.44 : 121,810,108.72 = 51,988,225.70 : x - Step 2: Convert to fraction form
81,077,394.44/121,810,108.72 = 51,988,225.70/x - Step 3: Cross multiply
81,077,394.44x = 121,810,108.72 × 51,988,225.70 - Step 4: Simplify right side
81,077,394.44x = 6,332,691,424,676,898 - Step 5: Solve for x
x = 6,332,691,424,676,898/81,077,394.44 - Step 6: Final answer
x = 78,106,745.64
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.