Finding the Fourth Proportional to 79,236,744.20, 118,855,116.30 and 54,577,881.80
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Solution
The fourth proportional to 79,236,744.20, 118,855,116.30 and 54,577,881.80 is: 81,866,822.70
Step by Step Solution
- Step 1: Write the proportion equation
79,236,744.20 : 118,855,116.30 = 54,577,881.80 : x - Step 2: Convert to fraction form
79,236,744.20/118,855,116.30 = 54,577,881.80/x - Step 3: Cross multiply
79,236,744.20x = 118,855,116.30 × 54,577,881.80 - Step 4: Simplify right side
79,236,744.20x = 6,486,860,488,746,653 - Step 5: Solve for x
x = 6,486,860,488,746,653/79,236,744.20 - Step 6: Final answer
x = 81,866,822.70
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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.