Finding the Fourth Proportional to 17,312,682.40, 25,934,809.20 and 15,185,168.80
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Solution
The fourth proportional to 17,312,682.40, 25,934,809.20 and 15,185,168.80 is: 22,747,743.32
Step by Step Solution
- Step 1: Write the proportion equation
17,312,682.40 : 25,934,809.20 = 15,185,168.80 : x - Step 2: Convert to fraction form
17,312,682.40/25,934,809.20 = 15,185,168.80/x - Step 3: Cross multiply
17,312,682.40x = 25,934,809.20 × 15,185,168.80 - Step 4: Simplify right side
17,312,682.40x = 393,824,455,497,792.94 - Step 5: Solve for x
x = 393,824,455,497,792.94/17,312,682.40 - Step 6: Final answer
x = 22,747,743.32
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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.