Finding the Fourth Proportional to 7,138,918, 10,704,352.86 and 2,345,320.12
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Solution
The fourth proportional to 7,138,918, 10,704,352.86 and 2,345,320.12 is: 3,516,658.15
Step by Step Solution
- Step 1: Write the proportion equation
7,138,918 : 10,704,352.86 = 2,345,320.12 : x - Step 2: Convert to fraction form
7,138,918/10,704,352.86 = 2,345,320.12/x - Step 3: Cross multiply
7,138,918x = 10,704,352.86 × 2,345,320.12 - Step 4: Simplify right side
7,138,918x = 25,105,134,134,137.54 - Step 5: Solve for x
x = 25,105,134,134,137.54/7,138,918 - Step 6: Final answer
x = 3,516,658.15
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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.