Finding the Fourth Proportional to 217,778,850.90, 326,668,276.35 and 168,461,126.10
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Solution
The fourth proportional to 217,778,850.90, 326,668,276.35 and 168,461,126.10 is: 252,691,689.15
Step by Step Solution
- Step 1: Write the proportion equation
217,778,850.90 : 326,668,276.35 = 168,461,126.10 : x - Step 2: Convert to fraction form
217,778,850.90/326,668,276.35 = 168,461,126.10/x - Step 3: Cross multiply
217,778,850.90x = 326,668,276.35 × 168,461,126.10 - Step 4: Simplify right side
217,778,850.90x = 55,030,905,695,067,000 - Step 5: Solve for x
x = 55,030,905,695,067,000/217,778,850.90 - Step 6: Final answer
x = 252,691,689.15
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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.