Finding the Fourth Proportional to 12,576,576.35, 17,350,636.51 and 7,928,831.99
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Solution
The fourth proportional to 12,576,576.35, 17,350,636.51 and 7,928,831.99 is: 10,938,611.43
Step by Step Solution
- Step 1: Write the proportion equation
12,576,576.35 : 17,350,636.51 = 7,928,831.99 : x - Step 2: Convert to fraction form
12,576,576.35/17,350,636.51 = 7,928,831.99/x - Step 3: Cross multiply
12,576,576.35x = 17,350,636.51 × 7,928,831.99 - Step 4: Simplify right side
12,576,576.35x = 137,570,281,807,349.97 - Step 5: Solve for x
x = 137,570,281,807,349.97/12,576,576.35 - Step 6: Final answer
x = 10,938,611.43
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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.