Finding the Fourth Proportional to 438,855,826.37, 658,213,666.11 and 127,890,704.19
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Solution
The fourth proportional to 438,855,826.37, 658,213,666.11 and 127,890,704.19 is: 191,815,635.59
Step by Step Solution
- Step 1: Write the proportion equation
438,855,826.37 : 658,213,666.11 = 127,890,704.19 : x - Step 2: Convert to fraction form
438,855,826.37/658,213,666.11 = 127,890,704.19/x - Step 3: Cross multiply
438,855,826.37x = 658,213,666.11 × 127,890,704.19 - Step 4: Simplify right side
438,855,826.37x = 84,179,409,266,289,440 - Step 5: Solve for x
x = 84,179,409,266,289,440/438,855,826.37 - Step 6: Final answer
x = 191,815,635.59
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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.