Finding the Fourth Proportional to 112,117,537.20, 168,176,305.80 and 61,099,201.20
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Solution
The fourth proportional to 112,117,537.20, 168,176,305.80 and 61,099,201.20 is: 91,648,801.80
Step by Step Solution
- Step 1: Write the proportion equation
112,117,537.20 : 168,176,305.80 = 61,099,201.20 : x - Step 2: Convert to fraction form
112,117,537.20/168,176,305.80 = 61,099,201.20/x - Step 3: Cross multiply
112,117,537.20x = 168,176,305.80 × 61,099,201.20 - Step 4: Simplify right side
112,117,537.20x = 10,275,437,945,146,928 - Step 5: Solve for x
x = 10,275,437,945,146,928/112,117,537.20 - Step 6: Final answer
x = 91,648,801.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.