Finding the Fourth Proportional to 6,639,387.80, 9,968,412.90 and 4,119,963.80
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Solution
The fourth proportional to 6,639,387.80, 9,968,412.90 and 4,119,963.80 is: 6,185,736.02
Step by Step Solution
- Step 1: Write the proportion equation
6,639,387.80 : 9,968,412.90 = 4,119,963.80 : x - Step 2: Convert to fraction form
6,639,387.80/9,968,412.90 = 4,119,963.80/x - Step 3: Cross multiply
6,639,387.80x = 9,968,412.90 × 4,119,963.80 - Step 4: Simplify right side
6,639,387.80x = 41,069,500,291,453.02 - Step 5: Solve for x
x = 41,069,500,291,453.02/6,639,387.80 - Step 6: Final answer
x = 6,185,736.02
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1.5x scale
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.