Finding the Fourth Proportional to 103,972,052.23, 143,480,905.81 and 56,928,270.96
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Solution
The fourth proportional to 103,972,052.23, 143,480,905.81 and 56,928,270.96 is: 78,560,725.78
Step by Step Solution
- Step 1: Write the proportion equation
103,972,052.23 : 143,480,905.81 = 56,928,270.96 : x - Step 2: Convert to fraction form
103,972,052.23/143,480,905.81 = 56,928,270.96/x - Step 3: Cross multiply
103,972,052.23x = 143,480,905.81 × 56,928,270.96 - Step 4: Simplify right side
103,972,052.23x = 8,168,119,883,537,919 - Step 5: Solve for x
x = 8,168,119,883,537,919/103,972,052.23 - Step 6: Final answer
x = 78,560,725.78
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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.