Finding the Fourth Proportional to 209,953,758.70, 314,930,638.05 and 133,048,341.10
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Solution
The fourth proportional to 209,953,758.70, 314,930,638.05 and 133,048,341.10 is: 199,572,511.65
Step by Step Solution
- Step 1: Write the proportion equation
209,953,758.70 : 314,930,638.05 = 133,048,341.10 : x - Step 2: Convert to fraction form
209,953,758.70/314,930,638.05 = 133,048,341.10/x - Step 3: Cross multiply
209,953,758.70x = 314,930,638.05 × 133,048,341.10 - Step 4: Simplify right side
209,953,758.70x = 41,900,998,954,117,040 - Step 5: Solve for x
x = 41,900,998,954,117,040/209,953,758.70 - Step 6: Final answer
x = 199,572,511.65
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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.