Finding the Fourth Proportional to 90,415,930.68, 135,611,126.28 and 28,997,108.28
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Solution
The fourth proportional to 90,415,930.68, 135,611,126.28 and 28,997,108.28 is: 43,491,567.06
Step by Step Solution
- Step 1: Write the proportion equation
90,415,930.68 : 135,611,126.28 = 28,997,108.28 : x - Step 2: Convert to fraction form
90,415,930.68/135,611,126.28 = 28,997,108.28/x - Step 3: Cross multiply
90,415,930.68x = 135,611,126.28 × 28,997,108.28 - Step 4: Simplify right side
90,415,930.68x = 3,932,330,512,713,914 - Step 5: Solve for x
x = 3,932,330,512,713,914/90,415,930.68 - Step 6: Final answer
x = 43,491,567.06
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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.