Finding the Fourth Proportional to 12,651,030.87, 18,977,712.89 and 4,131,411.99
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Solution
The fourth proportional to 12,651,030.87, 18,977,712.89 and 4,131,411.99 is: 6,197,498.95
Step by Step Solution
- Step 1: Write the proportion equation
12,651,030.87 : 18,977,712.89 = 4,131,411.99 : x - Step 2: Convert to fraction form
12,651,030.87/18,977,712.89 = 4,131,411.99/x - Step 3: Cross multiply
12,651,030.87x = 18,977,712.89 × 4,131,411.99 - Step 4: Simplify right side
12,651,030.87x = 78,404,750,555,866.50 - Step 5: Solve for x
x = 78,404,750,555,866.50/12,651,030.87 - Step 6: Final answer
x = 6,197,498.95
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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.