Finding the Fourth Proportional to 78,967,297.68, 108,972,823.92 and 43,686,405.84
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Solution
The fourth proportional to 78,967,297.68, 108,972,823.92 and 43,686,405.84 is: 60,286,107.68
Step by Step Solution
- Step 1: Write the proportion equation
78,967,297.68 : 108,972,823.92 = 43,686,405.84 : x - Step 2: Convert to fraction form
78,967,297.68/108,972,823.92 = 43,686,405.84/x - Step 3: Cross multiply
78,967,297.68x = 108,972,823.92 × 43,686,405.84 - Step 4: Simplify right side
78,967,297.68x = 4,760,631,011,299,980 - Step 5: Solve for x
x = 4,760,631,011,299,980/78,967,297.68 - Step 6: Final answer
x = 60,286,107.68
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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.