Finding the Fourth Proportional to 4,676,649.42, 6,451,991.90 and 2,840,415.06
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Solution
The fourth proportional to 4,676,649.42, 6,451,991.90 and 2,840,415.06 is: 3,918,689.07
Step by Step Solution
- Step 1: Write the proportion equation
4,676,649.42 : 6,451,991.90 = 2,840,415.06 : x - Step 2: Convert to fraction form
4,676,649.42/6,451,991.90 = 2,840,415.06/x - Step 3: Cross multiply
4,676,649.42x = 6,451,991.90 × 2,840,415.06 - Step 4: Simplify right side
4,676,649.42x = 18,326,334,980,402.46 - Step 5: Solve for x
x = 18,326,334,980,402.46/4,676,649.42 - Step 6: Final answer
x = 3,918,689.07
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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.