Finding the Fourth Proportional to 213,099,967.16, 319,658,919.12 and 67,539,272.24
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Solution
The fourth proportional to 213,099,967.16, 319,658,919.12 and 67,539,272.24 is: 101,311,750.77
Step by Step Solution
- Step 1: Write the proportion equation
213,099,967.16 : 319,658,919.12 = 67,539,272.24 : x - Step 2: Convert to fraction form
213,099,967.16/319,658,919.12 = 67,539,272.24/x - Step 3: Cross multiply
213,099,967.16x = 319,658,919.12 × 67,539,272.24 - Step 4: Simplify right side
213,099,967.16x = 21,589,530,762,389,820 - Step 5: Solve for x
x = 21,589,530,762,389,820/213,099,967.16 - Step 6: Final answer
x = 101,311,750.77
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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.