Finding the Fourth Proportional to 497,594,805.80, 746,392,208.70 and 221,245,485.80
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Solution
The fourth proportional to 497,594,805.80, 746,392,208.70 and 221,245,485.80 is: 331,868,228.70
Step by Step Solution
- Step 1: Write the proportion equation
497,594,805.80 : 746,392,208.70 = 221,245,485.80 : x - Step 2: Convert to fraction form
497,594,805.80/746,392,208.70 = 221,245,485.80/x - Step 3: Cross multiply
497,594,805.80x = 746,392,208.70 × 221,245,485.80 - Step 4: Simplify right side
497,594,805.80x = 165,135,906,811,166,496 - Step 5: Solve for x
x = 165,135,906,811,166,496/497,594,805.80 - Step 6: Final answer
x = 331,868,228.70
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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.