Finding the Fourth Proportional to 136,292,281.20, 204,438,421.80 and 82,544,569.20
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Solution
The fourth proportional to 136,292,281.20, 204,438,421.80 and 82,544,569.20 is: 123,816,853.80
Step by Step Solution
- Step 1: Write the proportion equation
136,292,281.20 : 204,438,421.80 = 82,544,569.20 : x - Step 2: Convert to fraction form
136,292,281.20/204,438,421.80 = 82,544,569.20/x - Step 3: Cross multiply
136,292,281.20x = 204,438,421.80 × 82,544,569.20 - Step 4: Simplify right side
136,292,281.20x = 16,875,281,455,408,890 - Step 5: Solve for x
x = 16,875,281,455,408,890/136,292,281.20 - Step 6: Final answer
x = 123,816,853.80
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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.