Finding the Fourth Proportional to 663,911,930.38, 995,799,650.73 and 221,206,794.63
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Solution
The fourth proportional to 663,911,930.38, 995,799,650.73 and 221,206,794.63 is: 331,787,453.65
Step by Step Solution
- Step 1: Write the proportion equation
663,911,930.38 : 995,799,650.73 = 221,206,794.63 : x - Step 2: Convert to fraction form
663,911,930.38/995,799,650.73 = 221,206,794.63/x - Step 3: Cross multiply
663,911,930.38x = 995,799,650.73 × 221,206,794.63 - Step 4: Simplify right side
663,911,930.38x = 220,277,648,832,260,832 - Step 5: Solve for x
x = 220,277,648,832,260,832/663,911,930.38 - Step 6: Final answer
x = 331,787,453.65
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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.