Finding the Fourth Proportional to 8,020,153.20, 12,031,979.40 and 2,339,914.80
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Solution
The fourth proportional to 8,020,153.20, 12,031,979.40 and 2,339,914.80 is: 3,510,382.65
Step by Step Solution
- Step 1: Write the proportion equation
8,020,153.20 : 12,031,979.40 = 2,339,914.80 : x - Step 2: Convert to fraction form
8,020,153.20/12,031,979.40 = 2,339,914.80/x - Step 3: Cross multiply
8,020,153.20x = 12,031,979.40 × 2,339,914.80 - Step 4: Simplify right side
8,020,153.20x = 28,153,806,671,355.12 - Step 5: Solve for x
x = 28,153,806,671,355.12/8,020,153.20 - Step 6: Final answer
x = 3,510,382.65
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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.