Finding the Fourth Proportional to 641,060,904,695.76, 961,622,281,177.36 and 210,788,463,172.08
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Solution
The fourth proportional to 641,060,904,695.76, 961,622,281,177.36 and 210,788,463,172.08 is: 316,192,862,981.72
Step by Step Solution
- Step 1: Write the proportion equation
641,060,904,695.76 : 961,622,281,177.36 = 210,788,463,172.08 : x - Step 2: Convert to fraction form
641,060,904,695.76/961,622,281,177.36 = 210,788,463,172.08/x - Step 3: Cross multiply
641,060,904,695.76x = 961,622,281,177.36 × 210,788,463,172.08 - Step 4: Simplify right side
641,060,904,695.76x = 202,698,882,801,405,484,072,960 - Step 5: Solve for x
x = 202,698,882,801,405,484,072,960/641,060,904,695.76 - Step 6: Final answer
x = 316,192,862,981.72
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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.