Finding the Fourth Proportional to 5,642,131.80, 8,461,469.70 and 1,854,739.80
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Solution
The fourth proportional to 5,642,131.80, 8,461,469.70 and 1,854,739.80 is: 2,781,541.65
Step by Step Solution
- Step 1: Write the proportion equation
5,642,131.80 : 8,461,469.70 = 1,854,739.80 : x - Step 2: Convert to fraction form
5,642,131.80/8,461,469.70 = 1,854,739.80/x - Step 3: Cross multiply
5,642,131.80x = 8,461,469.70 × 1,854,739.80 - Step 4: Simplify right side
5,642,131.80x = 15,693,824,619,084.06 - Step 5: Solve for x
x = 15,693,824,619,084.06/5,642,131.80 - Step 6: Final answer
x = 2,781,541.65
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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.