Finding the Fourth Proportional to 1,889,571,877.20, 2,834,357,815.80 and 662,864,331.60
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Solution
The fourth proportional to 1,889,571,877.20, 2,834,357,815.80 and 662,864,331.60 is: 994,296,497.40
Step by Step Solution
- Step 1: Write the proportion equation
1,889,571,877.20 : 2,834,357,815.80 = 662,864,331.60 : x - Step 2: Convert to fraction form
1,889,571,877.20/2,834,357,815.80 = 662,864,331.60/x - Step 3: Cross multiply
1,889,571,877.20x = 2,834,357,815.80 × 662,864,331.60 - Step 4: Simplify right side
1,889,571,877.20x = 1,878,794,699,085,503,232 - Step 5: Solve for x
x = 1,878,794,699,085,503,232/1,889,571,877.20 - Step 6: Final answer
x = 994,296,497.40
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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.