Finding the Fourth Proportional to 1,209,341,057.36, 1,668,784,198.20 and 673,452,237.20
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Solution
The fourth proportional to 1,209,341,057.36, 1,668,784,198.20 and 673,452,237.20 is: 929,304,801.85
Step by Step Solution
- Step 1: Write the proportion equation
1,209,341,057.36 : 1,668,784,198.20 = 673,452,237.20 : x - Step 2: Convert to fraction form
1,209,341,057.36/1,668,784,198.20 = 673,452,237.20/x - Step 3: Cross multiply
1,209,341,057.36x = 1,668,784,198.20 × 673,452,237.20 - Step 4: Simplify right side
1,209,341,057.36x = 1,123,846,451,681,798,272 - Step 5: Solve for x
x = 1,123,846,451,681,798,272/1,209,341,057.36 - Step 6: Final answer
x = 929,304,801.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.