Finding the Fourth Proportional to 121,606,411.56, 167,828,850.35 and 69,403,257.37
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Solution
The fourth proportional to 121,606,411.56, 167,828,850.35 and 69,403,257.37 is: 95,783,345.19
Step by Step Solution
- Step 1: Write the proportion equation
121,606,411.56 : 167,828,850.35 = 69,403,257.37 : x - Step 2: Convert to fraction form
121,606,411.56/167,828,850.35 = 69,403,257.37/x - Step 3: Cross multiply
121,606,411.56x = 167,828,850.35 × 69,403,257.37 - Step 4: Simplify right side
121,606,411.56x = 11,647,868,895,075,296 - Step 5: Solve for x
x = 11,647,868,895,075,296/121,606,411.56 - Step 6: Final answer
x = 95,783,345.19
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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.