Finding the Fourth Proportional to 20,406,980.63, 30,610,280.95 and 8,273,559.99
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Solution
The fourth proportional to 20,406,980.63, 30,610,280.95 and 8,273,559.99 is: 12,410,262.96
Step by Step Solution
- Step 1: Write the proportion equation
20,406,980.63 : 30,610,280.95 = 8,273,559.99 : x - Step 2: Convert to fraction form
20,406,980.63/30,610,280.95 = 8,273,559.99/x - Step 3: Cross multiply
20,406,980.63x = 30,610,280.95 × 8,273,559.99 - Step 4: Simplify right side
20,406,980.63x = 253,255,995,805,131.22 - Step 5: Solve for x
x = 253,255,995,805,131.22/20,406,980.63 - Step 6: Final answer
x = 12,410,262.96
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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.