Finding the Fourth Proportional to 298,872,819.20, 448,309,228.80 and 145,817,811.20
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Solution
The fourth proportional to 298,872,819.20, 448,309,228.80 and 145,817,811.20 is: 218,726,716.80
Step by Step Solution
- Step 1: Write the proportion equation
298,872,819.20 : 448,309,228.80 = 145,817,811.20 : x - Step 2: Convert to fraction form
298,872,819.20/448,309,228.80 = 145,817,811.20/x - Step 3: Cross multiply
298,872,819.20x = 448,309,228.80 × 145,817,811.20 - Step 4: Simplify right side
298,872,819.20x = 65,371,470,484,376,000 - Step 5: Solve for x
x = 65,371,470,484,376,000/298,872,819.20 - Step 6: Final answer
x = 218,726,716.80
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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.