Finding the Fourth Proportional to 1,206,040,255.97, 1,664,385,590.12 and 670,189,920.13
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Solution
The fourth proportional to 1,206,040,255.97, 1,664,385,590.12 and 670,189,920.13 is: 924,889,894.99
Step by Step Solution
- Step 1: Write the proportion equation
1,206,040,255.97 : 1,664,385,590.12 = 670,189,920.13 : x - Step 2: Convert to fraction form
1,206,040,255.97/1,664,385,590.12 = 670,189,920.13/x - Step 3: Cross multiply
1,206,040,255.97x = 1,664,385,590.12 × 670,189,920.13 - Step 4: Simplify right side
1,206,040,255.97x = 1,115,454,445,703,013,632 - Step 5: Solve for x
x = 1,115,454,445,703,013,632/1,206,040,255.97 - Step 6: Final answer
x = 924,889,894.99
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1.5x scale
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.