Finding the Fourth Proportional to 2,986,641,239.20, 4,479,961,858.80 and 2,690,734,890.40
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Solution
The fourth proportional to 2,986,641,239.20, 4,479,961,858.80 and 2,690,734,890.40 is: 4,036,102,335.60
Step by Step Solution
- Step 1: Write the proportion equation
2,986,641,239.20 : 4,479,961,858.80 = 2,690,734,890.40 : x - Step 2: Convert to fraction form
2,986,641,239.20/4,479,961,858.80 = 2,690,734,890.40/x - Step 3: Cross multiply
2,986,641,239.20x = 4,479,961,858.80 × 2,690,734,890.40 - Step 4: Simplify right side
2,986,641,239.20x = 12,054,389,681,134,399,488 - Step 5: Solve for x
x = 12,054,389,681,134,399,488/2,986,641,239.20 - Step 6: Final answer
x = 4,036,102,335.60
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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.