Finding the Fourth Proportional to 133,030,826.40, 199,546,239.60 and 87,643,869.60
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Solution
The fourth proportional to 133,030,826.40, 199,546,239.60 and 87,643,869.60 is: 131,465,804.40
Step by Step Solution
- Step 1: Write the proportion equation
133,030,826.40 : 199,546,239.60 = 87,643,869.60 : x - Step 2: Convert to fraction form
133,030,826.40/199,546,239.60 = 87,643,869.60/x - Step 3: Cross multiply
133,030,826.40x = 199,546,239.60 × 87,643,869.60 - Step 4: Simplify right side
133,030,826.40x = 17,489,004,602,672,754 - Step 5: Solve for x
x = 17,489,004,602,672,754/133,030,826.40 - Step 6: Final answer
x = 131,465,804.40
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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.