Finding the Fourth Proportional to 155,701,185.09, 214,860,831.15 and 85,135,464.96
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Solution
The fourth proportional to 155,701,185.09, 214,860,831.15 and 85,135,464.96 is: 117,483,221.15
Step by Step Solution
- Step 1: Write the proportion equation
155,701,185.09 : 214,860,831.15 = 85,135,464.96 : x - Step 2: Convert to fraction form
155,701,185.09/214,860,831.15 = 85,135,464.96/x - Step 3: Cross multiply
155,701,185.09x = 214,860,831.15 × 85,135,464.96 - Step 4: Simplify right side
155,701,185.09x = 18,292,276,760,572,996 - Step 5: Solve for x
x = 18,292,276,760,572,996/155,701,185.09 - Step 6: Final answer
x = 117,483,221.15
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.