Finding the Fourth Proportional to 12,948,650.80, 19,430,752.20 and 5,374,826.80
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Solution
The fourth proportional to 12,948,650.80, 19,430,752.20 and 5,374,826.80 is: 8,065,467.92
Step by Step Solution
- Step 1: Write the proportion equation
12,948,650.80 : 19,430,752.20 = 5,374,826.80 : x - Step 2: Convert to fraction form
12,948,650.80/19,430,752.20 = 5,374,826.80/x - Step 3: Cross multiply
12,948,650.80x = 19,430,752.20 × 5,374,826.80 - Step 4: Simplify right side
12,948,650.80x = 104,436,927,668,718.95 - Step 5: Solve for x
x = 104,436,927,668,718.95/12,948,650.80 - Step 6: Final answer
x = 8,065,467.92
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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.