Finding the Fourth Proportional to 431,676,289.20, 647,372,716.20 and 159,011,626.80
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Solution
The fourth proportional to 431,676,289.20, 647,372,716.20 and 159,011,626.80 is: 238,465,237.32
Step by Step Solution
- Step 1: Write the proportion equation
431,676,289.20 : 647,372,716.20 = 159,011,626.80 : x - Step 2: Convert to fraction form
431,676,289.20/647,372,716.20 = 159,011,626.80/x - Step 3: Cross multiply
431,676,289.20x = 647,372,716.20 × 159,011,626.80 - Step 4: Simplify right side
431,676,289.20x = 102,939,788,748,896,736 - Step 5: Solve for x
x = 102,939,788,748,896,736/431,676,289.20 - Step 6: Final answer
x = 238,465,237.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.