Finding the Fourth Proportional to 1,443,554,375.12, 1,992,106,512.08 and 783,504,789.20
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Solution
The fourth proportional to 1,443,554,375.12, 1,992,106,512.08 and 783,504,789.20 is: 1,081,237,409.35
Step by Step Solution
- Step 1: Write the proportion equation
1,443,554,375.12 : 1,992,106,512.08 = 783,504,789.20 : x - Step 2: Convert to fraction form
1,443,554,375.12/1,992,106,512.08 = 783,504,789.20/x - Step 3: Cross multiply
1,443,554,375.12x = 1,992,106,512.08 × 783,504,789.20 - Step 4: Simplify right side
1,443,554,375.12x = 1,560,824,992,811,187,712 - Step 5: Solve for x
x = 1,560,824,992,811,187,712/1,443,554,375.12 - Step 6: Final answer
x = 1,081,237,409.35
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.