Finding the Fourth Proportional to 7,801,981.40, 11,687,225.70 and 4,432,251.80
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Solution
The fourth proportional to 7,801,981.40, 11,687,225.70 and 4,432,251.80 is: 6,639,432.28
Step by Step Solution
- Step 1: Write the proportion equation
7,801,981.40 : 11,687,225.70 = 4,432,251.80 : x - Step 2: Convert to fraction form
7,801,981.40/11,687,225.70 = 4,432,251.80/x - Step 3: Cross multiply
7,801,981.40x = 11,687,225.70 × 4,432,251.80 - Step 4: Simplify right side
7,801,981.40x = 51,800,727,145,831.26 - Step 5: Solve for x
x = 51,800,727,145,831.26/7,801,981.40 - Step 6: Final answer
x = 6,639,432.28
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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.