Finding the Fourth Proportional to 66,961,566,138.20, 100,442,349,207.30 and 60,142,965,531.80
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Solution
The fourth proportional to 66,961,566,138.20, 100,442,349,207.30 and 60,142,965,531.80 is: 90,214,448,297.70
Step by Step Solution
- Step 1: Write the proportion equation
66,961,566,138.20 : 100,442,349,207.30 = 60,142,965,531.80 : x - Step 2: Convert to fraction form
66,961,566,138.20/100,442,349,207.30 = 60,142,965,531.80/x - Step 3: Cross multiply
66,961,566,138.20x = 100,442,349,207.30 × 60,142,965,531.80 - Step 4: Simplify right side
66,961,566,138.20x = 6,040,900,746,307,663,036,416 - Step 5: Solve for x
x = 6,040,900,746,307,663,036,416/66,961,566,138.20 - Step 6: Final answer
x = 90,214,448,297.70
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1.5x scale
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.