Finding the Fourth Proportional to 215,540,984.20, 323,311,476.30 and 106,418,432.20
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Solution
The fourth proportional to 215,540,984.20, 323,311,476.30 and 106,418,432.20 is: 159,627,648.30
Step by Step Solution
- Step 1: Write the proportion equation
215,540,984.20 : 323,311,476.30 = 106,418,432.20 : x - Step 2: Convert to fraction form
215,540,984.20/323,311,476.30 = 106,418,432.20/x - Step 3: Cross multiply
215,540,984.20x = 323,311,476.30 × 106,418,432.20 - Step 4: Simplify right side
215,540,984.20x = 34,406,300,420,113,460 - Step 5: Solve for x
x = 34,406,300,420,113,460/215,540,984.20 - Step 6: Final answer
x = 159,627,648.30
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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.