Finding the Fourth Proportional to 1,078,891,710.24, 1,617,682,230.54 and 423,057,037.08
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Solution
The fourth proportional to 1,078,891,710.24, 1,617,682,230.54 and 423,057,037.08 is: 634,328,584.50
Step by Step Solution
- Step 1: Write the proportion equation
1,078,891,710.24 : 1,617,682,230.54 = 423,057,037.08 : x - Step 2: Convert to fraction form
1,078,891,710.24/1,617,682,230.54 = 423,057,037.08/x - Step 3: Cross multiply
1,078,891,710.24x = 1,617,682,230.54 × 423,057,037.08 - Step 4: Simplify right side
1,078,891,710.24x = 684,371,851,389,217,792 - Step 5: Solve for x
x = 684,371,851,389,217,792/1,078,891,710.24 - Step 6: Final answer
x = 634,328,584.50
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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.