Finding the Fourth Proportional to 912,961,793.67, 1,370,328,239.88 and 440,593,262.70
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Solution
The fourth proportional to 912,961,793.67, 1,370,328,239.88 and 440,593,262.70 is: 661,317,258.14
Step by Step Solution
- Step 1: Write the proportion equation
912,961,793.67 : 1,370,328,239.88 = 440,593,262.70 : x - Step 2: Convert to fraction form
912,961,793.67/1,370,328,239.88 = 440,593,262.70/x - Step 3: Cross multiply
912,961,793.67x = 1,370,328,239.88 × 440,593,262.70 - Step 4: Simplify right side
912,961,793.67x = 603,757,390,178,677,504 - Step 5: Solve for x
x = 603,757,390,178,677,504/912,961,793.67 - Step 6: Final answer
x = 661,317,258.14
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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.