Finding the Fourth Proportional to 209,953,828.20, 314,930,742.30 and 202,301,077.80
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Solution
The fourth proportional to 209,953,828.20, 314,930,742.30 and 202,301,077.80 is: 303,451,616.70
Step by Step Solution
- Step 1: Write the proportion equation
209,953,828.20 : 314,930,742.30 = 202,301,077.80 : x - Step 2: Convert to fraction form
209,953,828.20/314,930,742.30 = 202,301,077.80/x - Step 3: Cross multiply
209,953,828.20x = 314,930,742.30 × 202,301,077.80 - Step 4: Simplify right side
209,953,828.20x = 63,710,828,599,644,056 - Step 5: Solve for x
x = 63,710,828,599,644,056/209,953,828.20 - Step 6: Final answer
x = 303,451,616.70
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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.