Finding the Fourth Proportional to 55,243,123.36, 76,237,350.64 and 30,126,603.05
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Solution
The fourth proportional to 55,243,123.36, 76,237,350.64 and 30,126,603.05 is: 41,575,715.86
Step by Step Solution
- Step 1: Write the proportion equation
55,243,123.36 : 76,237,350.64 = 30,126,603.05 : x - Step 2: Convert to fraction form
55,243,123.36/76,237,350.64 = 30,126,603.05/x - Step 3: Cross multiply
55,243,123.36x = 76,237,350.64 × 30,126,603.05 - Step 4: Simplify right side
55,243,123.36x = 2,296,772,399,933,757 - Step 5: Solve for x
x = 2,296,772,399,933,757/55,243,123.36 - Step 6: Final answer
x = 41,575,715.86
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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.