Finding the Fourth Proportional to 2,781,691,800.80, 4,172,537,701.20 and 2,738,693,631.20
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Solution
The fourth proportional to 2,781,691,800.80, 4,172,537,701.20 and 2,738,693,631.20 is: 4,108,040,446.80
Step by Step Solution
- Step 1: Write the proportion equation
2,781,691,800.80 : 4,172,537,701.20 = 2,738,693,631.20 : x - Step 2: Convert to fraction form
2,781,691,800.80/4,172,537,701.20 = 2,738,693,631.20/x - Step 3: Cross multiply
2,781,691,800.80x = 4,172,537,701.20 × 2,738,693,631.20 - Step 4: Simplify right side
2,781,691,800.80x = 11,427,302,428,218,327,040 - Step 5: Solve for x
x = 11,427,302,428,218,327,040/2,781,691,800.80 - Step 6: Final answer
x = 4,108,040,446.80
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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.