Finding the Fourth Proportional to 263,896,277.20, 395,844,415.80 and 72,420,053.20
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Solution
The fourth proportional to 263,896,277.20, 395,844,415.80 and 72,420,053.20 is: 108,630,079.80
Step by Step Solution
- Step 1: Write the proportion equation
263,896,277.20 : 395,844,415.80 = 72,420,053.20 : x - Step 2: Convert to fraction form
263,896,277.20/395,844,415.80 = 72,420,053.20/x - Step 3: Cross multiply
263,896,277.20x = 395,844,415.80 × 72,420,053.20 - Step 4: Simplify right side
263,896,277.20x = 28,667,073,651,158,924 - Step 5: Solve for x
x = 28,667,073,651,158,924/263,896,277.20 - Step 6: Final answer
x = 108,630,079.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.