Finding the Fourth Proportional to 52,253,756.97, 72,003,930.71 and 40,421,171.09
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Solution
The fourth proportional to 52,253,756.97, 72,003,930.71 and 40,421,171.09 is: 55,699,022.82
Step by Step Solution
- Step 1: Write the proportion equation
52,253,756.97 : 72,003,930.71 = 40,421,171.09 : x - Step 2: Convert to fraction form
52,253,756.97/72,003,930.71 = 40,421,171.09/x - Step 3: Cross multiply
52,253,756.97x = 72,003,930.71 × 40,421,171.09 - Step 4: Simplify right side
52,253,756.97x = 2,910,483,202,122,449 - Step 5: Solve for x
x = 2,910,483,202,122,449/52,253,756.97 - Step 6: Final answer
x = 55,699,022.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.