Finding the Fourth Proportional to 497,712,657.80, 746,568,986.70 and 394,920,158.60
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Solution
The fourth proportional to 497,712,657.80, 746,568,986.70 and 394,920,158.60 is: 592,380,237.90
Step by Step Solution
- Step 1: Write the proportion equation
497,712,657.80 : 746,568,986.70 = 394,920,158.60 : x - Step 2: Convert to fraction form
497,712,657.80/746,568,986.70 = 394,920,158.60/x - Step 3: Cross multiply
497,712,657.80x = 746,568,986.70 × 394,920,158.60 - Step 4: Simplify right side
497,712,657.80x = 294,835,142,633,405,312 - Step 5: Solve for x
x = 294,835,142,633,405,312/497,712,657.80 - Step 6: Final answer
x = 592,380,237.90
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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.