Finding the Fourth Proportional to 611,400,970.53, 843,711,174.74 and 373,643,922.74
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Solution
The fourth proportional to 611,400,970.53, 843,711,174.74 and 373,643,922.74 is: 515,615,067.99
Step by Step Solution
- Step 1: Write the proportion equation
611,400,970.53 : 843,711,174.74 = 373,643,922.74 : x - Step 2: Convert to fraction form
611,400,970.53/843,711,174.74 = 373,643,922.74/x - Step 3: Cross multiply
611,400,970.53x = 843,711,174.74 × 373,643,922.74 - Step 4: Simplify right side
611,400,970.53x = 315,247,552,986,142,720 - Step 5: Solve for x
x = 315,247,552,986,142,720/611,400,970.53 - Step 6: Final answer
x = 515,615,067.99
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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.