Finding the Fourth Proportional to 102,504,905,707.68, 153,701,307,020.43 and 81,392,970,970.06
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Solution
The fourth proportional to 102,504,905,707.68, 153,701,307,020.43 and 81,392,970,970.06 is: 122,044,949,302.72
Step by Step Solution
- Step 1: Write the proportion equation
102,504,905,707.68 : 153,701,307,020.43 = 81,392,970,970.06 : x - Step 2: Convert to fraction form
102,504,905,707.68/153,701,307,020.43 = 81,392,970,970.06/x - Step 3: Cross multiply
102,504,905,707.68x = 153,701,307,020.43 × 81,392,970,970.06 - Step 4: Simplify right side
102,504,905,707.68x = 12,510,206,020,373,369,061,376 - Step 5: Solve for x
x = 12,510,206,020,373,369,061,376/102,504,905,707.68 - Step 6: Final answer
x = 122,044,949,302.72
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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.