Finding the Fourth Proportional to 664,281,664.70, 996,422,497.05 and 255,351,155.90
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Solution
The fourth proportional to 664,281,664.70, 996,422,497.05 and 255,351,155.90 is: 383,026,733.85
Step by Step Solution
- Step 1: Write the proportion equation
664,281,664.70 : 996,422,497.05 = 255,351,155.90 : x - Step 2: Convert to fraction form
664,281,664.70/996,422,497.05 = 255,351,155.90/x - Step 3: Cross multiply
664,281,664.70x = 996,422,497.05 × 255,351,155.90 - Step 4: Simplify right side
664,281,664.70x = 254,437,636,386,481,824 - Step 5: Solve for x
x = 254,437,636,386,481,824/664,281,664.70 - Step 6: Final answer
x = 383,026,733.85
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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.