Finding the Fourth Proportional to 103,886,013.26, 143,362,622.21 and 56,843,395.63
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Solution
The fourth proportional to 103,886,013.26, 143,362,622.21 and 56,843,395.63 is: 78,443,844.33
Step by Step Solution
- Step 1: Write the proportion equation
103,886,013.26 : 143,362,622.21 = 56,843,395.63 : x - Step 2: Convert to fraction form
103,886,013.26/143,362,622.21 = 56,843,395.63/x - Step 3: Cross multiply
103,886,013.26x = 143,362,622.21 × 56,843,395.63 - Step 4: Simplify right side
103,886,013.26x = 8,149,218,252,194,632 - Step 5: Solve for x
x = 8,149,218,252,194,632/103,886,013.26 - Step 6: Final answer
x = 78,443,844.33
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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.