Finding the Fourth Proportional to 104,128,534.28, 143,694,263.03 and 57,083,998.79
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Solution
The fourth proportional to 104,128,534.28, 143,694,263.03 and 57,083,998.79 is: 78,774,211.06
Step by Step Solution
- Step 1: Write the proportion equation
104,128,534.28 : 143,694,263.03 = 57,083,998.79 : x - Step 2: Convert to fraction form
104,128,534.28/143,694,263.03 = 57,083,998.79/x - Step 3: Cross multiply
104,128,534.28x = 143,694,263.03 × 57,083,998.79 - Step 4: Simplify right side
104,128,534.28x = 8,202,643,135,930,570 - Step 5: Solve for x
x = 8,202,643,135,930,570/104,128,534.28 - Step 6: Final answer
x = 78,774,211.06
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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.