Finding the Fourth Proportional to 420,050,122.80, 628,563,529.80 and 284,001,226.80
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Solution
The fourth proportional to 420,050,122.80, 628,563,529.80 and 284,001,226.80 is: 424,979,791.45
Step by Step Solution
- Step 1: Write the proportion equation
420,050,122.80 : 628,563,529.80 = 284,001,226.80 : x - Step 2: Convert to fraction form
420,050,122.80/628,563,529.80 = 284,001,226.80/x - Step 3: Cross multiply
420,050,122.80x = 628,563,529.80 × 284,001,226.80 - Step 4: Simplify right side
420,050,122.80x = 178,512,813,584,938,368 - Step 5: Solve for x
x = 178,512,813,584,938,368/420,050,122.80 - Step 6: Final answer
x = 424,979,791.45
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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.