Finding the Fourth Proportional to 209,954,666.80, 314,837,521.80 and 80,519,258.80
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Solution
The fourth proportional to 209,954,666.80, 314,837,521.80 and 80,519,258.80 is: 120,742,654.99
Step by Step Solution
- Step 1: Write the proportion equation
209,954,666.80 : 314,837,521.80 = 80,519,258.80 : x - Step 2: Convert to fraction form
209,954,666.80/314,837,521.80 = 80,519,258.80/x - Step 3: Cross multiply
209,954,666.80x = 314,837,521.80 × 80,519,258.80 - Step 4: Simplify right side
209,954,666.80x = 25,350,483,897,764,840 - Step 5: Solve for x
x = 25,350,483,897,764,840/209,954,666.80 - Step 6: Final answer
x = 120,742,654.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.