Finding the Fourth Proportional to 449,946,172.58, 620,926,629.63 and 251,710,977.83
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Solution
The fourth proportional to 449,946,172.58, 620,926,629.63 and 251,710,977.83 is: 347,361,659.30
Step by Step Solution
- Step 1: Write the proportion equation
449,946,172.58 : 620,926,629.63 = 251,710,977.83 : x - Step 2: Convert to fraction form
449,946,172.58/620,926,629.63 = 251,710,977.83/x - Step 3: Cross multiply
449,946,172.58x = 620,926,629.63 × 251,710,977.83 - Step 4: Simplify right side
449,946,172.58x = 156,294,049,101,748,896 - Step 5: Solve for x
x = 156,294,049,101,748,896/449,946,172.58 - Step 6: Final answer
x = 347,361,659.30
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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.