Finding the Fourth Proportional to 1,347,489,036.20, 2,021,233,554.30 and 930,272,421.80
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Solution
The fourth proportional to 1,347,489,036.20, 2,021,233,554.30 and 930,272,421.80 is: 1,395,408,632.70
Step by Step Solution
- Step 1: Write the proportion equation
1,347,489,036.20 : 2,021,233,554.30 = 930,272,421.80 : x - Step 2: Convert to fraction form
1,347,489,036.20/2,021,233,554.30 = 930,272,421.80/x - Step 3: Cross multiply
1,347,489,036.20x = 2,021,233,554.30 × 930,272,421.80 - Step 4: Simplify right side
1,347,489,036.20x = 1,880,297,833,582,082,560 - Step 5: Solve for x
x = 1,880,297,833,582,082,560/1,347,489,036.20 - Step 6: Final answer
x = 1,395,408,632.70
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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.