Finding the Fourth Proportional to 3,511,246,862.18, 4,840,833,195.95 and 2,789,429,778.09
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Solution
The fourth proportional to 3,511,246,862.18, 4,840,833,195.95 and 2,789,429,778.09 is: 3,845,689,237.35
Step by Step Solution
- Step 1: Write the proportion equation
3,511,246,862.18 : 4,840,833,195.95 = 2,789,429,778.09 : x - Step 2: Convert to fraction form
3,511,246,862.18/4,840,833,195.95 = 2,789,429,778.09/x - Step 3: Cross multiply
3,511,246,862.18x = 4,840,833,195.95 × 2,789,429,778.09 - Step 4: Simplify right side
3,511,246,862.18x = 13,503,164,267,549,513,728 - Step 5: Solve for x
x = 13,503,164,267,549,513,728/3,511,246,862.18 - Step 6: Final answer
x = 3,845,689,237.35
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1.5x scale
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.