Finding the Fourth Proportional to 28,646,805.02, 39,532,595.18 and 15,594,163.02
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Solution
The fourth proportional to 28,646,805.02, 39,532,595.18 and 15,594,163.02 is: 21,519,947.28
Step by Step Solution
- Step 1: Write the proportion equation
28,646,805.02 : 39,532,595.18 = 15,594,163.02 : x - Step 2: Convert to fraction form
28,646,805.02/39,532,595.18 = 15,594,163.02/x - Step 3: Cross multiply
28,646,805.02x = 39,532,595.18 × 15,594,163.02 - Step 4: Simplify right side
28,646,805.02x = 616,477,733,762,615.38 - Step 5: Solve for x
x = 616,477,733,762,615.38/28,646,805.02 - Step 6: Final answer
x = 21,519,947.28
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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.