Finding the Fourth Proportional to 995,332,642.80, 1,492,998,964.20 and 683,595,913.20
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Solution
The fourth proportional to 995,332,642.80, 1,492,998,964.20 and 683,595,913.20 is: 1,025,393,869.80
Step by Step Solution
- Step 1: Write the proportion equation
995,332,642.80 : 1,492,998,964.20 = 683,595,913.20 : x - Step 2: Convert to fraction form
995,332,642.80/1,492,998,964.20 = 683,595,913.20/x - Step 3: Cross multiply
995,332,642.80x = 1,492,998,964.20 × 683,595,913.20 - Step 4: Simplify right side
995,332,642.80x = 1,020,607,990,338,953,216 - Step 5: Solve for x
x = 1,020,607,990,338,953,216/995,332,642.80 - Step 6: Final answer
x = 1,025,393,869.80
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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.