Finding the Fourth Proportional to 995,331,230.80, 1,492,996,846.20 and 878,429,957.20
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Solution
The fourth proportional to 995,331,230.80, 1,492,996,846.20 and 878,429,957.20 is: 1,317,644,935.80
Step by Step Solution
- Step 1: Write the proportion equation
995,331,230.80 : 1,492,996,846.20 = 878,429,957.20 : x - Step 2: Convert to fraction form
995,331,230.80/1,492,996,846.20 = 878,429,957.20/x - Step 3: Cross multiply
995,331,230.80x = 1,492,996,846.20 × 878,429,957.20 - Step 4: Simplify right side
995,331,230.80x = 1,311,493,155,707,201,024 - Step 5: Solve for x
x = 1,311,493,155,707,201,024/995,331,230.80 - Step 6: Final answer
x = 1,317,644,935.80
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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.