Finding the Fourth Proportional to 79,392,142.80, 119,088,214.20 and 76,032,910.80
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Solution
The fourth proportional to 79,392,142.80, 119,088,214.20 and 76,032,910.80 is: 114,049,366.20
Step by Step Solution
- Step 1: Write the proportion equation
79,392,142.80 : 119,088,214.20 = 76,032,910.80 : x - Step 2: Convert to fraction form
79,392,142.80/119,088,214.20 = 76,032,910.80/x - Step 3: Cross multiply
79,392,142.80x = 119,088,214.20 × 76,032,910.80 - Step 4: Simplify right side
79,392,142.80x = 9,054,623,567,599,894 - Step 5: Solve for x
x = 9,054,623,567,599,894/79,392,142.80 - Step 6: Final answer
x = 114,049,366.20
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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.