Finding the Fourth Proportional to 726,647,209.68, 1,090,137,726.30 and 209,081,937.36
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Solution
The fourth proportional to 726,647,209.68, 1,090,137,726.30 and 209,081,937.36 is: 313,670,932.42
Step by Step Solution
- Step 1: Write the proportion equation
726,647,209.68 : 1,090,137,726.30 = 209,081,937.36 : x - Step 2: Convert to fraction form
726,647,209.68/1,090,137,726.30 = 209,081,937.36/x - Step 3: Cross multiply
726,647,209.68x = 1,090,137,726.30 × 209,081,937.36 - Step 4: Simplify right side
726,647,209.68x = 227,928,107,804,029,440 - Step 5: Solve for x
x = 227,928,107,804,029,440/726,647,209.68 - Step 6: Final answer
x = 313,670,932.42
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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.