Finding the Fourth Proportional to 2,659,393,376.20, 3,989,090,064.30 and 1,771,674,329.80
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Solution
The fourth proportional to 2,659,393,376.20, 3,989,090,064.30 and 1,771,674,329.80 is: 2,657,511,494.70
Step by Step Solution
- Step 1: Write the proportion equation
2,659,393,376.20 : 3,989,090,064.30 = 1,771,674,329.80 : x - Step 2: Convert to fraction form
2,659,393,376.20/3,989,090,064.30 = 1,771,674,329.80/x - Step 3: Cross multiply
2,659,393,376.20x = 3,989,090,064.30 × 1,771,674,329.80 - Step 4: Simplify right side
2,659,393,376.20x = 7,067,368,466,180,541,440 - Step 5: Solve for x
x = 7,067,368,466,180,541,440/2,659,393,376.20 - Step 6: Final answer
x = 2,657,511,494.70
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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.