Finding the Fourth Proportional to 92,945,184.21, 128,263,644.94 and 51,128,349.09
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Solution
The fourth proportional to 92,945,184.21, 128,263,644.94 and 51,128,349.09 is: 70,556,731.57
Step by Step Solution
- Step 1: Write the proportion equation
92,945,184.21 : 128,263,644.94 = 51,128,349.09 : x - Step 2: Convert to fraction form
92,945,184.21/128,263,644.94 = 51,128,349.09/x - Step 3: Cross multiply
92,945,184.21x = 128,263,644.94 × 51,128,349.09 - Step 4: Simplify right side
92,945,184.21x = 6,557,908,413,151,172 - Step 5: Solve for x
x = 6,557,908,413,151,172/92,945,184.21 - Step 6: Final answer
x = 70,556,731.57
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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.