Finding the Fourth Proportional to 1,513,728,000.20, 2,270,592,000.30 and 423,209,318.60
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Solution
The fourth proportional to 1,513,728,000.20, 2,270,592,000.30 and 423,209,318.60 is: 634,813,977.90
Step by Step Solution
- Step 1: Write the proportion equation
1,513,728,000.20 : 2,270,592,000.30 = 423,209,318.60 : x - Step 2: Convert to fraction form
1,513,728,000.20/2,270,592,000.30 = 423,209,318.60/x - Step 3: Cross multiply
1,513,728,000.20x = 2,270,592,000.30 × 423,209,318.60 - Step 4: Simplify right side
1,513,728,000.20x = 960,935,693,265,574,144 - Step 5: Solve for x
x = 960,935,693,265,574,144/1,513,728,000.20 - Step 6: Final answer
x = 634,813,977.90
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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.