Finding the Fourth Proportional to 645,560,712.81, 968,710,072.98 and 350,479,824.75
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Solution
The fourth proportional to 645,560,712.81, 968,710,072.98 and 350,479,824.75 is: 525,920,072.08
Step by Step Solution
- Step 1: Write the proportion equation
645,560,712.81 : 968,710,072.98 = 350,479,824.75 : x - Step 2: Convert to fraction form
645,560,712.81/968,710,072.98 = 350,479,824.75/x - Step 3: Cross multiply
645,560,712.81x = 968,710,072.98 × 350,479,824.75 - Step 4: Simplify right side
645,560,712.81x = 339,513,336,611,590,144 - Step 5: Solve for x
x = 339,513,336,611,590,144/645,560,712.81 - Step 6: Final answer
x = 525,920,072.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.