Finding the Fourth Proportional to 79,730,744.80, 119,596,117.20 and 68,251,619.20
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Solution
The fourth proportional to 79,730,744.80, 119,596,117.20 and 68,251,619.20 is: 102,377,428.80
Step by Step Solution
- Step 1: Write the proportion equation
79,730,744.80 : 119,596,117.20 = 68,251,619.20 : x - Step 2: Convert to fraction form
79,730,744.80/119,596,117.20 = 68,251,619.20/x - Step 3: Cross multiply
79,730,744.80x = 119,596,117.20 × 68,251,619.20 - Step 4: Simplify right side
79,730,744.80x = 8,162,628,648,932,971 - Step 5: Solve for x
x = 8,162,628,648,932,971/79,730,744.80 - Step 6: Final answer
x = 102,377,428.80
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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.