Finding the Fourth Proportional to 648,045,914.90, 894,207,159.21 and 393,594,860.00
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Solution
The fourth proportional to 648,045,914.90, 894,207,159.21 and 393,594,860.00 is: 543,102,477.07
Step by Step Solution
- Step 1: Write the proportion equation
648,045,914.90 : 894,207,159.21 = 393,594,860.00 : x - Step 2: Convert to fraction form
648,045,914.90/894,207,159.21 = 393,594,860.00/x - Step 3: Cross multiply
648,045,914.90x = 894,207,159.21 × 393,594,860.00 - Step 4: Simplify right side
648,045,914.90x = 351,955,341,635,786,624 - Step 5: Solve for x
x = 351,955,341,635,786,624/648,045,914.90 - Step 6: Final answer
x = 543,102,477.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.