Finding the Fourth Proportional to 5,400,873.50, 8,102,115.80 and 1,988,897.74
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Solution
The fourth proportional to 5,400,873.50, 8,102,115.80 and 1,988,897.74 is: 2,983,643.26
Step by Step Solution
- Step 1: Write the proportion equation
5,400,873.50 : 8,102,115.80 = 1,988,897.74 : x - Step 2: Convert to fraction form
5,400,873.50/8,102,115.80 = 1,988,897.74/x - Step 3: Cross multiply
5,400,873.50x = 8,102,115.80 × 1,988,897.74 - Step 4: Simplify right side
5,400,873.50x = 16,114,279,803,838.29 - Step 5: Solve for x
x = 16,114,279,803,838.29/5,400,873.50 - Step 6: Final answer
x = 2,983,643.26
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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.