Finding the Fourth Proportional to 467,817,724.36, 645,596,072.18 and 256,120,981.93
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Solution
The fourth proportional to 467,817,724.36, 645,596,072.18 and 256,120,981.93 is: 353,451,122.79
Step by Step Solution
- Step 1: Write the proportion equation
467,817,724.36 : 645,596,072.18 = 256,120,981.93 : x - Step 2: Convert to fraction form
467,817,724.36/645,596,072.18 = 256,120,981.93/x - Step 3: Cross multiply
467,817,724.36x = 645,596,072.18 × 256,120,981.93 - Step 4: Simplify right side
467,817,724.36x = 165,350,699,936,892,736 - Step 5: Solve for x
x = 165,350,699,936,892,736/467,817,724.36 - Step 6: Final answer
x = 353,451,122.79
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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.