Finding the Fourth Proportional to 48,138,622.80, 66,357,587.64 and 29,519,234.74
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Solution
The fourth proportional to 48,138,622.80, 66,357,587.64 and 29,519,234.74 is: 40,691,342.88
Step by Step Solution
- Step 1: Write the proportion equation
48,138,622.80 : 66,357,587.64 = 29,519,234.74 : x - Step 2: Convert to fraction form
48,138,622.80/66,357,587.64 = 29,519,234.74/x - Step 3: Cross multiply
48,138,622.80x = 66,357,587.64 × 29,519,234.74 - Step 4: Simplify right side
48,138,622.80x = 1,958,825,206,325,282.50 - Step 5: Solve for x
x = 1,958,825,206,325,282.50/48,138,622.80 - Step 6: Final answer
x = 40,691,342.88
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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.