Finding the Fourth Proportional to 331,451,290.80, 497,176,936.20 and 210,817,537.20
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Solution
The fourth proportional to 331,451,290.80, 497,176,936.20 and 210,817,537.20 is: 316,226,305.80
Step by Step Solution
- Step 1: Write the proportion equation
331,451,290.80 : 497,176,936.20 = 210,817,537.20 : x - Step 2: Convert to fraction form
331,451,290.80/497,176,936.20 = 210,817,537.20/x - Step 3: Cross multiply
331,451,290.80x = 497,176,936.20 × 210,817,537.20 - Step 4: Simplify right side
331,451,290.80x = 104,813,617,242,325,520 - Step 5: Solve for x
x = 104,813,617,242,325,520/331,451,290.80 - Step 6: Final answer
x = 316,226,305.80
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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.