Finding the Fourth Proportional to 8,490,465.20, 12,735,697.80 and 5,656,113.20
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Solution
The fourth proportional to 8,490,465.20, 12,735,697.80 and 5,656,113.20 is: 8,484,169.80
Step by Step Solution
- Step 1: Write the proportion equation
8,490,465.20 : 12,735,697.80 = 5,656,113.20 : x - Step 2: Convert to fraction form
8,490,465.20/12,735,697.80 = 5,656,113.20/x - Step 3: Cross multiply
8,490,465.20x = 12,735,697.80 × 5,656,113.20 - Step 4: Simplify right side
8,490,465.20x = 72,034,548,437,790.97 - Step 5: Solve for x
x = 72,034,548,437,790.97/8,490,465.20 - Step 6: Final answer
x = 8,484,169.80
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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.