Finding the Fourth Proportional to 1,102,387,907.20, 1,651,668,673.20 and 930,201,023.20
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Solution
The fourth proportional to 1,102,387,907.20, 1,651,668,673.20 and 930,201,023.20 is: 1,393,687,176.50
Step by Step Solution
- Step 1: Write the proportion equation
1,102,387,907.20 : 1,651,668,673.20 = 930,201,023.20 : x - Step 2: Convert to fraction form
1,102,387,907.20/1,651,668,673.20 = 930,201,023.20/x - Step 3: Cross multiply
1,102,387,907.20x = 1,651,668,673.20 × 930,201,023.20 - Step 4: Simplify right side
1,102,387,907.20x = 1,536,383,889,798,026,496 - Step 5: Solve for x
x = 1,536,383,889,798,026,496/1,102,387,907.20 - Step 6: Final answer
x = 1,393,687,176.50
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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.