Finding the Fourth Proportional to 995,331,241.80, 1,492,996,862.70 and 878,429,968.20
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Solution
The fourth proportional to 995,331,241.80, 1,492,996,862.70 and 878,429,968.20 is: 1,317,644,952.30
Step by Step Solution
- Step 1: Write the proportion equation
995,331,241.80 : 1,492,996,862.70 = 878,429,968.20 : x - Step 2: Convert to fraction form
995,331,241.80/1,492,996,862.70 = 878,429,968.20/x - Step 3: Cross multiply
995,331,241.80x = 1,492,996,862.70 × 878,429,968.20 - Step 4: Simplify right side
995,331,241.80x = 1,311,493,186,624,260,864 - Step 5: Solve for x
x = 1,311,493,186,624,260,864/995,331,241.80 - Step 6: Final answer
x = 1,317,644,952.30
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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.