Finding the Fourth Proportional to 1,997,889,423.60, 2,996,834,135.40 and 848,882,780.40
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Solution
The fourth proportional to 1,997,889,423.60, 2,996,834,135.40 and 848,882,780.40 is: 1,273,324,170.60
Step by Step Solution
- Step 1: Write the proportion equation
1,997,889,423.60 : 2,996,834,135.40 = 848,882,780.40 : x - Step 2: Convert to fraction form
1,997,889,423.60/2,996,834,135.40 = 848,882,780.40/x - Step 3: Cross multiply
1,997,889,423.60x = 2,996,834,135.40 × 848,882,780.40 - Step 4: Simplify right side
1,997,889,423.60x = 2,543,960,893,255,982,080 - Step 5: Solve for x
x = 2,543,960,893,255,982,080/1,997,889,423.60 - Step 6: Final answer
x = 1,273,324,170.60
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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.