Finding the Fourth Proportional to 394,970,970.42, 545,426,323.11 and 295,679,338.20
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Solution
The fourth proportional to 394,970,970.42, 545,426,323.11 and 295,679,338.20 is: 408,311,765.50
Step by Step Solution
- Step 1: Write the proportion equation
394,970,970.42 : 545,426,323.11 = 295,679,338.20 : x - Step 2: Convert to fraction form
394,970,970.42/545,426,323.11 = 295,679,338.20/x - Step 3: Cross multiply
394,970,970.42x = 545,426,323.11 × 295,679,338.20 - Step 4: Simplify right side
394,970,970.42x = 161,271,294,254,024,160 - Step 5: Solve for x
x = 161,271,294,254,024,160/394,970,970.42 - Step 6: Final answer
x = 408,311,765.50
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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.