Finding the Fourth Proportional to 1,553,227,873.97, 2,329,850,520.68 and 518,085,913.19
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Solution
The fourth proportional to 1,553,227,873.97, 2,329,850,520.68 and 518,085,913.19 is: 777,131,774.94
Step by Step Solution
- Step 1: Write the proportion equation
1,553,227,873.97 : 2,329,850,520.68 = 518,085,913.19 : x - Step 2: Convert to fraction form
1,553,227,873.97/2,329,850,520.68 = 518,085,913.19/x - Step 3: Cross multiply
1,553,227,873.97x = 2,329,850,520.68 × 518,085,913.19 - Step 4: Simplify right side
1,553,227,873.97x = 1,207,062,734,588,455,168 - Step 5: Solve for x
x = 1,207,062,734,588,455,168/1,553,227,873.97 - Step 6: Final answer
x = 777,131,774.94
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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.