Finding the Fourth Proportional to 385,566,219.80, 578,349,329.70 and 331,818,507.80
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Solution
The fourth proportional to 385,566,219.80, 578,349,329.70 and 331,818,507.80 is: 497,727,761.70
Step by Step Solution
- Step 1: Write the proportion equation
385,566,219.80 : 578,349,329.70 = 331,818,507.80 : x - Step 2: Convert to fraction form
385,566,219.80/578,349,329.70 = 331,818,507.80/x - Step 3: Cross multiply
385,566,219.80x = 578,349,329.70 × 331,818,507.80 - Step 4: Simplify right side
385,566,219.80x = 191,907,011,568,184,256 - Step 5: Solve for x
x = 191,907,011,568,184,256/385,566,219.80 - Step 6: Final answer
x = 497,727,761.70
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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.