Finding the Fourth Proportional to 220,185,564.80, 330,278,347.20 and 90,726,537.20
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Solution
The fourth proportional to 220,185,564.80, 330,278,347.20 and 90,726,537.20 is: 136,089,805.80
Step by Step Solution
- Step 1: Write the proportion equation
220,185,564.80 : 330,278,347.20 = 90,726,537.20 : x - Step 2: Convert to fraction form
220,185,564.80/330,278,347.20 = 90,726,537.20/x - Step 3: Cross multiply
220,185,564.80x = 330,278,347.20 × 90,726,537.20 - Step 4: Simplify right side
220,185,564.80x = 29,965,010,753,595,316 - Step 5: Solve for x
x = 29,965,010,753,595,316/220,185,564.80 - Step 6: Final answer
x = 136,089,805.80
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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.