Finding the Fourth Proportional to 7,403,513.87, 10,217,369.79 and 4,140,632.21
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Solution
The fourth proportional to 7,403,513.87, 10,217,369.79 and 4,140,632.21 is: 5,714,363.64
Step by Step Solution
- Step 1: Write the proportion equation
7,403,513.87 : 10,217,369.79 = 4,140,632.21 : x - Step 2: Convert to fraction form
7,403,513.87/10,217,369.79 = 4,140,632.21/x - Step 3: Cross multiply
7,403,513.87x = 10,217,369.79 × 4,140,632.21 - Step 4: Simplify right side
7,403,513.87x = 42,306,370,453,954.93 - Step 5: Solve for x
x = 42,306,370,453,954.93/7,403,513.87 - Step 6: Final answer
x = 5,714,363.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.