Finding the Fourth Proportional to 81,662,486.80, 122,493,730.20 and 36,224,281.30
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Solution
The fourth proportional to 81,662,486.80, 122,493,730.20 and 36,224,281.30 is: 54,336,421.95
Step by Step Solution
- Step 1: Write the proportion equation
81,662,486.80 : 122,493,730.20 = 36,224,281.30 : x - Step 2: Convert to fraction form
81,662,486.80/122,493,730.20 = 36,224,281.30/x - Step 3: Cross multiply
81,662,486.80x = 122,493,730.20 × 36,224,281.30 - Step 4: Simplify right side
81,662,486.80x = 4,437,247,340,251,105 - Step 5: Solve for x
x = 4,437,247,340,251,105/81,662,486.80 - Step 6: Final answer
x = 54,336,421.95
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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.