Finding the Fourth Proportional to 118,090,919.23, 162,965,538.44 and 65,879,955.07
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Solution
The fourth proportional to 118,090,919.23, 162,965,538.44 and 65,879,955.07 is: 90,914,376.99
Step by Step Solution
- Step 1: Write the proportion equation
118,090,919.23 : 162,965,538.44 = 65,879,955.07 : x - Step 2: Convert to fraction form
118,090,919.23/162,965,538.44 = 65,879,955.07/x - Step 3: Cross multiply
118,090,919.23x = 162,965,538.44 × 65,879,955.07 - Step 4: Simplify right side
118,090,919.23x = 10,736,162,350,385,558 - Step 5: Solve for x
x = 10,736,162,350,385,558/118,090,919.23 - Step 6: Final answer
x = 90,914,376.99
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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.