Finding the Fourth Proportional to 15,414,515.79, 21,272,048.44 and 8,350,125.63
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Solution
The fourth proportional to 15,414,515.79, 21,272,048.44 and 8,350,125.63 is: 11,523,182.38
Step by Step Solution
- Step 1: Write the proportion equation
15,414,515.79 : 21,272,048.44 = 8,350,125.63 : x - Step 2: Convert to fraction form
15,414,515.79/21,272,048.44 = 8,350,125.63/x - Step 3: Cross multiply
15,414,515.79x = 21,272,048.44 × 8,350,125.63 - Step 4: Simplify right side
15,414,515.79x = 177,624,276,733,334.62 - Step 5: Solve for x
x = 177,624,276,733,334.62/15,414,515.79 - Step 6: Final answer
x = 11,523,182.38
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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.