Finding the Fourth Proportional to 263,896,231.70, 395,844,347.55 and 72,420,007.70
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Solution
The fourth proportional to 263,896,231.70, 395,844,347.55 and 72,420,007.70 is: 108,630,011.55
Step by Step Solution
- Step 1: Write the proportion equation
263,896,231.70 : 395,844,347.55 = 72,420,007.70 : x - Step 2: Convert to fraction form
263,896,231.70/395,844,347.55 = 72,420,007.70/x - Step 3: Cross multiply
263,896,231.70x = 395,844,347.55 × 72,420,007.70 - Step 4: Simplify right side
263,896,231.70x = 28,667,050,697,572,480 - Step 5: Solve for x
x = 28,667,050,697,572,480/263,896,231.70 - Step 6: Final answer
x = 108,630,011.55
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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.