Finding the Fourth Proportional to 331,451,228.80, 497,176,843.20 and 210,817,475.20
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Solution
The fourth proportional to 331,451,228.80, 497,176,843.20 and 210,817,475.20 is: 316,226,212.80
Step by Step Solution
- Step 1: Write the proportion equation
331,451,228.80 : 497,176,843.20 = 210,817,475.20 : x - Step 2: Convert to fraction form
331,451,228.80/497,176,843.20 = 210,817,475.20/x - Step 3: Cross multiply
331,451,228.80x = 497,176,843.20 × 210,817,475.20 - Step 4: Simplify right side
331,451,228.80x = 104,813,566,811,330,288 - Step 5: Solve for x
x = 104,813,566,811,330,288/331,451,228.80 - Step 6: Final answer
x = 316,226,212.80
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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.