Finding the Fourth Proportional to 13,175,968, 18,182,831.80 and 7,374,748.21
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Solution
The fourth proportional to 13,175,968, 18,182,831.80 and 7,374,748.21 is: 10,177,150.27
Step by Step Solution
- Step 1: Write the proportion equation
13,175,968 : 18,182,831.80 = 7,374,748.21 : x - Step 2: Convert to fraction form
13,175,968/18,182,831.80 = 7,374,748.21/x - Step 3: Cross multiply
13,175,968x = 18,182,831.80 × 7,374,748.21 - Step 4: Simplify right side
13,175,968x = 134,093,806,269,781.08 - Step 5: Solve for x
x = 134,093,806,269,781.08/13,175,968 - Step 6: Final answer
x = 10,177,150.27
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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.