Finding the Fourth Proportional to 402,149,246.20, 603,223,869.30 and 143,656,343.80
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Solution
The fourth proportional to 402,149,246.20, 603,223,869.30 and 143,656,343.80 is: 215,484,515.70
Step by Step Solution
- Step 1: Write the proportion equation
402,149,246.20 : 603,223,869.30 = 143,656,343.80 : x - Step 2: Convert to fraction form
402,149,246.20/603,223,869.30 = 143,656,343.80/x - Step 3: Cross multiply
402,149,246.20x = 603,223,869.30 × 143,656,343.80 - Step 4: Simplify right side
402,149,246.20x = 86,656,935,556,527,072 - Step 5: Solve for x
x = 86,656,935,556,527,072/402,149,246.20 - Step 6: Final answer
x = 215,484,515.70
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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.