Finding the Fourth Proportional to 357,366,808.65, 493,178,171.16 and 198,603,622.05
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Solution
The fourth proportional to 357,366,808.65, 493,178,171.16 and 198,603,622.05 is: 274,079,653.56
Step by Step Solution
- Step 1: Write the proportion equation
357,366,808.65 : 493,178,171.16 = 198,603,622.05 : x - Step 2: Convert to fraction form
357,366,808.65/493,178,171.16 = 198,603,622.05/x - Step 3: Cross multiply
357,366,808.65x = 493,178,171.16 × 198,603,622.05 - Step 4: Simplify right side
357,366,808.65x = 97,946,971,108,370,864 - Step 5: Solve for x
x = 97,946,971,108,370,864/357,366,808.65 - Step 6: Final answer
x = 274,079,653.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.