Finding the Fourth Proportional to 5,338,757.98, 7,367,449.50 and 2,891,312.74
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Solution
The fourth proportional to 5,338,757.98, 7,367,449.50 and 2,891,312.74 is: 3,989,991.81
Step by Step Solution
- Step 1: Write the proportion equation
5,338,757.98 : 7,367,449.50 = 2,891,312.74 : x - Step 2: Convert to fraction form
5,338,757.98/7,367,449.50 = 2,891,312.74/x - Step 3: Cross multiply
5,338,757.98x = 7,367,449.50 × 2,891,312.74 - Step 4: Simplify right side
5,338,757.98x = 21,301,600,600,656.63 - Step 5: Solve for x
x = 21,301,600,600,656.63/5,338,757.98 - Step 6: Final answer
x = 3,989,991.81
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1.5x scale
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.