Finding the Fourth Proportional to 87,171,780.24, 120,305,559.60 and 65,106,989.84
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Solution
The fourth proportional to 87,171,780.24, 120,305,559.60 and 65,106,989.84 is: 89,853,996.61
Step by Step Solution
- Step 1: Write the proportion equation
87,171,780.24 : 120,305,559.60 = 65,106,989.84 : x - Step 2: Convert to fraction form
87,171,780.24/120,305,559.60 = 65,106,989.84/x - Step 3: Cross multiply
87,171,780.24x = 120,305,559.60 × 65,106,989.84 - Step 4: Simplify right side
87,171,780.24x = 7,832,732,846,572,715 - Step 5: Solve for x
x = 7,832,732,846,572,715/87,171,780.24 - Step 6: Final answer
x = 89,853,996.61
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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.