Finding the Fourth Proportional to 102,632,955.12, 141,632,350.74 and 55,588,859.01
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Solution
The fourth proportional to 102,632,955.12, 141,632,350.74 and 55,588,859.01 is: 76,712,014.84
Step by Step Solution
- Step 1: Write the proportion equation
102,632,955.12 : 141,632,350.74 = 55,588,859.01 : x - Step 2: Convert to fraction form
102,632,955.12/141,632,350.74 = 55,588,859.01/x - Step 3: Cross multiply
102,632,955.12x = 141,632,350.74 × 55,588,859.01 - Step 4: Simplify right side
102,632,955.12x = 7,873,180,776,540,729 - Step 5: Solve for x
x = 7,873,180,776,540,729/102,632,955.12 - Step 6: Final answer
x = 76,712,014.84
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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.