Finding the Fourth Proportional to 1,561,625,885.63, 2,342,356,329.06 and 512,225,858.77
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Solution
The fourth proportional to 1,561,625,885.63, 2,342,356,329.06 and 512,225,858.77 is: 768,311,727.69
Step by Step Solution
- Step 1: Write the proportion equation
1,561,625,885.63 : 2,342,356,329.06 = 512,225,858.77 : x - Step 2: Convert to fraction form
1,561,625,885.63/2,342,356,329.06 = 512,225,858.77/x - Step 3: Cross multiply
1,561,625,885.63x = 2,342,356,329.06 × 512,225,858.77 - Step 4: Simplify right side
1,561,625,885.63x = 1,199,815,482,198,103,040 - Step 5: Solve for x
x = 1,199,815,482,198,103,040/1,561,625,885.63 - Step 6: Final answer
x = 768,311,727.69
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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.