Finding the Fourth Proportional to 995,328,609.40, 1,492,992,914.10 and 916,498,631.80
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Solution
The fourth proportional to 995,328,609.40, 1,492,992,914.10 and 916,498,631.80 is: 1,374,747,947.70
Step by Step Solution
- Step 1: Write the proportion equation
995,328,609.40 : 1,492,992,914.10 = 916,498,631.80 : x - Step 2: Convert to fraction form
995,328,609.40/1,492,992,914.10 = 916,498,631.80/x - Step 3: Cross multiply
995,328,609.40x = 1,492,992,914.10 × 916,498,631.80 - Step 4: Simplify right side
995,328,609.40x = 1,368,325,963,059,744,768 - Step 5: Solve for x
x = 1,368,325,963,059,744,768/995,328,609.40 - Step 6: Final answer
x = 1,374,747,947.70
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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.