Finding the Fourth Proportional to 1,164,920,898.26, 1,747,387,879.68 and 388,564,427.67
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Solution
The fourth proportional to 1,164,920,898.26, 1,747,387,879.68 and 388,564,427.67 is: 582,848,820.38
Step by Step Solution
- Step 1: Write the proportion equation
1,164,920,898.26 : 1,747,387,879.68 = 388,564,427.67 : x - Step 2: Convert to fraction form
1,164,920,898.26/1,747,387,879.68 = 388,564,427.67/x - Step 3: Cross multiply
1,164,920,898.26x = 1,747,387,879.68 × 388,564,427.67 - Step 4: Simplify right side
1,164,920,898.26x = 678,972,771,385,354,112 - Step 5: Solve for x
x = 678,972,771,385,354,112/1,164,920,898.26 - Step 6: Final answer
x = 582,848,820.38
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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.