Finding the Fourth Proportional to 81,869,427.57, 112,989,717.09 and 46,595,808.96
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Solution
The fourth proportional to 81,869,427.57, 112,989,717.09 and 46,595,808.96 is: 64,307,854.94
Step by Step Solution
- Step 1: Write the proportion equation
81,869,427.57 : 112,989,717.09 = 46,595,808.96 : x - Step 2: Convert to fraction form
81,869,427.57/112,989,717.09 = 46,595,808.96/x - Step 3: Cross multiply
81,869,427.57x = 112,989,717.09 × 46,595,808.96 - Step 4: Simplify right side
81,869,427.57x = 5,264,847,271,970,087 - Step 5: Solve for x
x = 5,264,847,271,970,087/81,869,427.57 - Step 6: Final answer
x = 64,307,854.94
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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.