Finding the Fourth Proportional to 71,819,310.36, 99,111,277.74 and 40,881,468.90
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Solution
The fourth proportional to 71,819,310.36, 99,111,277.74 and 40,881,468.90 is: 56,416,785.38
Step by Step Solution
- Step 1: Write the proportion equation
71,819,310.36 : 99,111,277.74 = 40,881,468.90 : x - Step 2: Convert to fraction form
71,819,310.36/99,111,277.74 = 40,881,468.90/x - Step 3: Cross multiply
71,819,310.36x = 99,111,277.74 × 40,881,468.90 - Step 4: Simplify right side
71,819,310.36x = 4,051,814,618,567,072 - Step 5: Solve for x
x = 4,051,814,618,567,072/71,819,310.36 - Step 6: Final answer
x = 56,416,785.38
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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.