Finding the Fourth Proportional to 122,079,507.75, 168,428,054.30 and 75,652,821.99
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Solution
The fourth proportional to 122,079,507.75, 168,428,054.30 and 75,652,821.99 is: 104,375,073.63
Step by Step Solution
- Step 1: Write the proportion equation
122,079,507.75 : 168,428,054.30 = 75,652,821.99 : x - Step 2: Convert to fraction form
122,079,507.75/168,428,054.30 = 75,652,821.99/x - Step 3: Cross multiply
122,079,507.75x = 168,428,054.30 × 75,652,821.99 - Step 4: Simplify right side
122,079,507.75x = 12,742,057,609,701,688 - Step 5: Solve for x
x = 12,742,057,609,701,688/122,079,507.75 - Step 6: Final answer
x = 104,375,073.63
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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.