Finding the Fourth Proportional to 1,324,977,125.40, 1,987,465,688.10 and 452,563,579.80
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Solution
The fourth proportional to 1,324,977,125.40, 1,987,465,688.10 and 452,563,579.80 is: 678,845,369.70
Step by Step Solution
- Step 1: Write the proportion equation
1,324,977,125.40 : 1,987,465,688.10 = 452,563,579.80 : x - Step 2: Convert to fraction form
1,324,977,125.40/1,987,465,688.10 = 452,563,579.80/x - Step 3: Cross multiply
1,324,977,125.40x = 1,987,465,688.10 × 452,563,579.80 - Step 4: Simplify right side
1,324,977,125.40x = 899,454,586,536,206,208 - Step 5: Solve for x
x = 899,454,586,536,206,208/1,324,977,125.40 - Step 6: Final answer
x = 678,845,369.70
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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.