Finding the Fourth Proportional to 80,644,005.80, 120,966,008.70 and 26,791,317.80
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Solution
The fourth proportional to 80,644,005.80, 120,966,008.70 and 26,791,317.80 is: 40,186,976.70
Step by Step Solution
- Step 1: Write the proportion equation
80,644,005.80 : 120,966,008.70 = 26,791,317.80 : x - Step 2: Convert to fraction form
80,644,005.80/120,966,008.70 = 26,791,317.80/x - Step 3: Cross multiply
80,644,005.80x = 120,966,008.70 × 26,791,317.80 - Step 4: Simplify right side
80,644,005.80x = 3,240,838,782,079,265 - Step 5: Solve for x
x = 3,240,838,782,079,265/80,644,005.80 - Step 6: Final answer
x = 40,186,976.70
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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.