Finding the Fourth Proportional to 2,136,939,983.96, 2,948,977,457.49 and 1,184,382,220.59
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Solution
The fourth proportional to 2,136,939,983.96, 2,948,977,457.49 and 1,184,382,220.59 is: 1,634,447,619.40
Step by Step Solution
- Step 1: Write the proportion equation
2,136,939,983.96 : 2,948,977,457.49 = 1,184,382,220.59 : x - Step 2: Convert to fraction form
2,136,939,983.96/2,948,977,457.49 = 1,184,382,220.59/x - Step 3: Cross multiply
2,136,939,983.96x = 2,948,977,457.49 × 1,184,382,220.59 - Step 4: Simplify right side
2,136,939,983.96x = 3,492,716,469,571,857,920 - Step 5: Solve for x
x = 3,492,716,469,571,857,920/2,136,939,983.96 - Step 6: Final answer
x = 1,634,447,619.40
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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.