Finding the Fourth Proportional to 3,987,547,325.46, 5,503,128,995.67 and 2,270,969,064.84
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Solution
The fourth proportional to 3,987,547,325.46, 5,503,128,995.67 and 2,270,969,064.84 is: 3,134,115,958.75
Step by Step Solution
- Step 1: Write the proportion equation
3,987,547,325.46 : 5,503,128,995.67 = 2,270,969,064.84 : x - Step 2: Convert to fraction form
3,987,547,325.46/5,503,128,995.67 = 2,270,969,064.84/x - Step 3: Cross multiply
3,987,547,325.46x = 5,503,128,995.67 × 2,270,969,064.84 - Step 4: Simplify right side
3,987,547,325.46x = 12,497,435,708,990,588,928 - Step 5: Solve for x
x = 12,497,435,708,990,588,928/3,987,547,325.46 - Step 6: Final answer
x = 3,134,115,958.75
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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.