Finding the Fourth Proportional to 7,658,619.84, 10,568,860.72 and 4,220,853.44
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Solution
The fourth proportional to 7,658,619.84, 10,568,860.72 and 4,220,853.44 is: 5,824,758.65
Step by Step Solution
- Step 1: Write the proportion equation
7,658,619.84 : 10,568,860.72 = 4,220,853.44 : x - Step 2: Convert to fraction form
7,658,619.84/10,568,860.72 = 4,220,853.44/x - Step 3: Cross multiply
7,658,619.84x = 10,568,860.72 × 4,220,853.44 - Step 4: Simplify right side
7,658,619.84x = 44,609,612,126,892.88 - Step 5: Solve for x
x = 44,609,612,126,892.88/7,658,619.84 - Step 6: Final answer
x = 5,824,758.65
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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.