Finding the Fourth Proportional to 1,989,654,539.20, 2,984,453,815.20 and 899,135,857.60
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Solution
The fourth proportional to 1,989,654,539.20, 2,984,453,815.20 and 899,135,857.60 is: 1,348,691,135.94
Step by Step Solution
- Step 1: Write the proportion equation
1,989,654,539.20 : 2,984,453,815.20 = 899,135,857.60 : x - Step 2: Convert to fraction form
1,989,654,539.20/2,984,453,815.20 = 899,135,857.60/x - Step 3: Cross multiply
1,989,654,539.20x = 2,984,453,815.20 × 899,135,857.60 - Step 4: Simplify right side
1,989,654,539.20x = 2,683,429,440,597,443,584 - Step 5: Solve for x
x = 2,683,429,440,597,443,584/1,989,654,539.20 - Step 6: Final answer
x = 1,348,691,135.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.