Finding the Fourth Proportional to 394,970,971.92, 545,426,325.18 and 295,679,339.70
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Solution
The fourth proportional to 394,970,971.92, 545,426,325.18 and 295,679,339.70 is: 408,311,767.57
Step by Step Solution
- Step 1: Write the proportion equation
394,970,971.92 : 545,426,325.18 = 295,679,339.70 : x - Step 2: Convert to fraction form
394,970,971.92/545,426,325.18 = 295,679,339.70/x - Step 3: Cross multiply
394,970,971.92x = 545,426,325.18 × 295,679,339.70 - Step 4: Simplify right side
394,970,971.92x = 161,271,295,684,219,872 - Step 5: Solve for x
x = 161,271,295,684,219,872/394,970,971.92 - Step 6: Final answer
x = 408,311,767.57
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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.