Finding the Fourth Proportional to 476,929,810.80, 715,394,716.20 and 149,432,684.40
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Solution
The fourth proportional to 476,929,810.80, 715,394,716.20 and 149,432,684.40 is: 224,149,026.60
Step by Step Solution
- Step 1: Write the proportion equation
476,929,810.80 : 715,394,716.20 = 149,432,684.40 : x - Step 2: Convert to fraction form
476,929,810.80/715,394,716.20 = 149,432,684.40/x - Step 3: Cross multiply
476,929,810.80x = 715,394,716.20 × 149,432,684.40 - Step 4: Simplify right side
476,929,810.80x = 106,903,352,847,342,176 - Step 5: Solve for x
x = 106,903,352,847,342,176/476,929,810.80 - Step 6: Final answer
x = 224,149,026.60
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1.5x scale
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.