Finding the Fourth Proportional to 7,471,423,074.57, 11,207,155,886.82 and 2,159,967,621.21
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Solution
The fourth proportional to 7,471,423,074.57, 11,207,155,886.82 and 2,159,967,621.21 is: 3,239,957,582.35
Step by Step Solution
- Step 1: Write the proportion equation
7,471,423,074.57 : 11,207,155,886.82 = 2,159,967,621.21 : x - Step 2: Convert to fraction form
7,471,423,074.57/11,207,155,886.82 = 2,159,967,621.21/x - Step 3: Cross multiply
7,471,423,074.57x = 11,207,155,886.82 × 2,159,967,621.21 - Step 4: Simplify right side
7,471,423,074.57x = 24,207,093,841,384,243,200 - Step 5: Solve for x
x = 24,207,093,841,384,243,200/7,471,423,074.57 - Step 6: Final answer
x = 3,239,957,582.35
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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.