Finding the Fourth Proportional to 112,332,159.80, 168,498,239.70 and 99,577,575.80
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Solution
The fourth proportional to 112,332,159.80, 168,498,239.70 and 99,577,575.80 is: 149,366,363.70
Step by Step Solution
- Step 1: Write the proportion equation
112,332,159.80 : 168,498,239.70 = 99,577,575.80 : x - Step 2: Convert to fraction form
112,332,159.80/168,498,239.70 = 99,577,575.80/x - Step 3: Cross multiply
112,332,159.80x = 168,498,239.70 × 99,577,575.80 - Step 4: Simplify right side
112,332,159.80x = 16,778,646,235,893,318 - Step 5: Solve for x
x = 16,778,646,235,893,318/112,332,159.80 - Step 6: Final answer
x = 149,366,363.70
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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.