Finding the Fourth Proportional to 3,935,465.19, 5,431,011.12 and 2,216,646.81
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Solution
The fourth proportional to 3,935,465.19, 5,431,011.12 and 2,216,646.81 is: 3,059,011.55
Step by Step Solution
- Step 1: Write the proportion equation
3,935,465.19 : 5,431,011.12 = 2,216,646.81 : x - Step 2: Convert to fraction form
3,935,465.19/5,431,011.12 = 2,216,646.81/x - Step 3: Cross multiply
3,935,465.19x = 5,431,011.12 × 2,216,646.81 - Step 4: Simplify right side
3,935,465.19x = 12,038,633,474,222.53 - Step 5: Solve for x
x = 12,038,633,474,222.53/3,935,465.19 - Step 6: Final answer
x = 3,059,011.55
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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.