Finding the Fourth Proportional to 752,991,201.10, 1,129,486,801.65 and 207,731,860.30
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Solution
The fourth proportional to 752,991,201.10, 1,129,486,801.65 and 207,731,860.30 is: 311,597,790.45
Step by Step Solution
- Step 1: Write the proportion equation
752,991,201.10 : 1,129,486,801.65 = 207,731,860.30 : x - Step 2: Convert to fraction form
752,991,201.10/1,129,486,801.65 = 207,731,860.30/x - Step 3: Cross multiply
752,991,201.10x = 1,129,486,801.65 × 207,731,860.30 - Step 4: Simplify right side
752,991,201.10x = 234,630,394,491,051,648 - Step 5: Solve for x
x = 234,630,394,491,051,648/752,991,201.10 - Step 6: Final answer
x = 311,597,790.45
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Similar ratio
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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.