Finding the Fourth Proportional to 3,600,987,162.36, 4,969,421,117.11 and 1,971,482,810.53
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Solution
The fourth proportional to 3,600,987,162.36, 4,969,421,117.11 and 1,971,482,810.53 is: 2,720,678,488.69
Step by Step Solution
- Step 1: Write the proportion equation
3,600,987,162.36 : 4,969,421,117.11 = 1,971,482,810.53 : x - Step 2: Convert to fraction form
3,600,987,162.36/4,969,421,117.11 = 1,971,482,810.53/x - Step 3: Cross multiply
3,600,987,162.36x = 4,969,421,117.11 × 1,971,482,810.53 - Step 4: Simplify right side
3,600,987,162.36x = 9,797,128,310,667,153,408 - Step 5: Solve for x
x = 9,797,128,310,667,153,408/3,600,987,162.36 - Step 6: Final answer
x = 2,720,678,488.69
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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.