Finding the Fourth Proportional to 7,236,827.70, 9,986,822.27 and 3,973,642.44
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Solution
The fourth proportional to 7,236,827.70, 9,986,822.27 and 3,973,642.44 is: 5,483,626.59
Step by Step Solution
- Step 1: Write the proportion equation
7,236,827.70 : 9,986,822.27 = 3,973,642.44 : x - Step 2: Convert to fraction form
7,236,827.70/9,986,822.27 = 3,973,642.44/x - Step 3: Cross multiply
7,236,827.70x = 9,986,822.27 × 3,973,642.44 - Step 4: Simplify right side
7,236,827.70x = 39,684,060,812,809.13 - Step 5: Solve for x
x = 39,684,060,812,809.13/7,236,827.70 - Step 6: Final answer
x = 5,483,626.59
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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.