Finding the Fourth Proportional to 2,136,543,572.40, 3,204,815,358.60 and 1,585,545,543.60
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Solution
The fourth proportional to 2,136,543,572.40, 3,204,815,358.60 and 1,585,545,543.60 is: 2,378,318,315.40
Step by Step Solution
- Step 1: Write the proportion equation
2,136,543,572.40 : 3,204,815,358.60 = 1,585,545,543.60 : x - Step 2: Convert to fraction form
2,136,543,572.40/3,204,815,358.60 = 1,585,545,543.60/x - Step 3: Cross multiply
2,136,543,572.40x = 3,204,815,358.60 × 1,585,545,543.60 - Step 4: Simplify right side
2,136,543,572.40x = 5,081,380,709,889,065,984 - Step 5: Solve for x
x = 5,081,380,709,889,065,984/2,136,543,572.40 - Step 6: Final answer
x = 2,378,318,315.40
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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.