Finding the Fourth Proportional to 6,669,983.88, 10,005,972.28 and 2,121,181.07
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Solution
The fourth proportional to 6,669,983.88, 10,005,972.28 and 2,121,181.07 is: 3,182,088.50
Step by Step Solution
- Step 1: Write the proportion equation
6,669,983.88 : 10,005,972.28 = 2,121,181.07 : x - Step 2: Convert to fraction form
6,669,983.88/10,005,972.28 = 2,121,181.07/x - Step 3: Cross multiply
6,669,983.88x = 10,005,972.28 × 2,121,181.07 - Step 4: Simplify right side
6,669,983.88x = 21,224,478,964,775.23 - Step 5: Solve for x
x = 21,224,478,964,775.23/6,669,983.88 - Step 6: Final answer
x = 3,182,088.50
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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.