Finding the Fourth Proportional to 76,746,380.40, 115,179,267.42 and 53,566,730.10
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Solution
The fourth proportional to 76,746,380.40, 115,179,267.42 and 53,566,730.10 is: 80,391,761.79
Step by Step Solution
- Step 1: Write the proportion equation
76,746,380.40 : 115,179,267.42 = 53,566,730.10 : x - Step 2: Convert to fraction form
76,746,380.40/115,179,267.42 = 53,566,730.10/x - Step 3: Cross multiply
76,746,380.40x = 115,179,267.42 × 53,566,730.10 - Step 4: Simplify right side
76,746,380.40x = 6,169,776,731,002,864 - Step 5: Solve for x
x = 6,169,776,731,002,864/76,746,380.40 - Step 6: Final answer
x = 80,391,761.79
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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.