Finding the Fourth Proportional to 143,779,437.11, 198,424,515 and 79,332,027.12
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Solution
The fourth proportional to 143,779,437.11, 198,424,515 and 79,332,027.12 is: 109,483,103.58
Step by Step Solution
- Step 1: Write the proportion equation
143,779,437.11 : 198,424,515 = 79,332,027.12 : x - Step 2: Convert to fraction form
143,779,437.11/198,424,515 = 79,332,027.12/x - Step 3: Cross multiply
143,779,437.11x = 198,424,515 × 79,332,027.12 - Step 4: Simplify right side
143,779,437.11x = 15,741,419,005,252,848 - Step 5: Solve for x
x = 15,741,419,005,252,848/143,779,437.11 - Step 6: Final answer
x = 109,483,103.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.