Finding the Fourth Proportional to 9,139,025.21, 12,617,589.35 and 5,881,500.99
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Solution
The fourth proportional to 9,139,025.21, 12,617,589.35 and 5,881,500.99 is: 8,120,161.89
Step by Step Solution
- Step 1: Write the proportion equation
9,139,025.21 : 12,617,589.35 = 5,881,500.99 : x - Step 2: Convert to fraction form
9,139,025.21/12,617,589.35 = 5,881,500.99/x - Step 3: Cross multiply
9,139,025.21x = 12,617,589.35 × 5,881,500.99 - Step 4: Simplify right side
9,139,025.21x = 74,210,364,253,438.45 - Step 5: Solve for x
x = 74,210,364,253,438.45/9,139,025.21 - Step 6: Final answer
x = 8,120,161.89
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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.