Finding the Fourth Proportional to 211,782,436.58, 316,698,444.12 and 201,451,223.54
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Solution
The fourth proportional to 211,782,436.58, 316,698,444.12 and 201,451,223.54 is: 301,249,197.49
Step by Step Solution
- Step 1: Write the proportion equation
211,782,436.58 : 316,698,444.12 = 201,451,223.54 : x - Step 2: Convert to fraction form
211,782,436.58/316,698,444.12 = 201,451,223.54/x - Step 3: Cross multiply
211,782,436.58x = 316,698,444.12 × 201,451,223.54 - Step 4: Simplify right side
211,782,436.58x = 63,799,289,061,188,320 - Step 5: Solve for x
x = 63,799,289,061,188,320/211,782,436.58 - Step 6: Final answer
x = 301,249,197.49
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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.