Finding the Fourth Proportional to 28,995,811.44, 40,014,368.72 and 15,943,912.08
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Solution
The fourth proportional to 28,995,811.44, 40,014,368.72 and 15,943,912.08 is: 22,002,680.56
Step by Step Solution
- Step 1: Write the proportion equation
28,995,811.44 : 40,014,368.72 = 15,943,912.08 : x - Step 2: Convert to fraction form
28,995,811.44/40,014,368.72 = 15,943,912.08/x - Step 3: Cross multiply
28,995,811.44x = 40,014,368.72 × 15,943,912.08 - Step 4: Simplify right side
28,995,811.44x = 637,985,576,808,382.12 - Step 5: Solve for x
x = 637,985,576,808,382.12/28,995,811.44 - Step 6: Final answer
x = 22,002,680.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.