Finding the Fourth Proportional to 75,854,218.16, 104,653,199.76 and 49,380,485.96
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Solution
The fourth proportional to 75,854,218.16, 104,653,199.76 and 49,380,485.96 is: 68,128,391.36
Step by Step Solution
- Step 1: Write the proportion equation
75,854,218.16 : 104,653,199.76 = 49,380,485.96 : x - Step 2: Convert to fraction form
75,854,218.16/104,653,199.76 = 49,380,485.96/x - Step 3: Cross multiply
75,854,218.16x = 104,653,199.76 × 49,380,485.96 - Step 4: Simplify right side
75,854,218.16x = 5,167,825,861,417,756 - Step 5: Solve for x
x = 5,167,825,861,417,756/75,854,218.16 - Step 6: Final answer
x = 68,128,391.36
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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.