Finding the Fourth Proportional to 121,498,513.13, 167,634,724.53 and 69,268,491.65
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Solution
The fourth proportional to 121,498,513.13, 167,634,724.53 and 69,268,491.65 is: 95,571,577.11
Step by Step Solution
- Step 1: Write the proportion equation
121,498,513.13 : 167,634,724.53 = 69,268,491.65 : x - Step 2: Convert to fraction form
121,498,513.13/167,634,724.53 = 69,268,491.65/x - Step 3: Cross multiply
121,498,513.13x = 167,634,724.53 × 69,268,491.65 - Step 4: Simplify right side
121,498,513.13x = 11,611,804,516,775,442 - Step 5: Solve for x
x = 11,611,804,516,775,442/121,498,513.13 - Step 6: Final answer
x = 95,571,577.11
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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.