Finding the Fourth Proportional to 157,516,781,791.44, 217,373,169,497.22 and 86,231,411,815.44
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Solution
The fourth proportional to 157,516,781,791.44, 217,373,169,497.22 and 86,231,411,815.44 is: 118,999,354,121.90
Step by Step Solution
- Step 1: Write the proportion equation
157,516,781,791.44 : 217,373,169,497.22 = 86,231,411,815.44 : x - Step 2: Convert to fraction form
157,516,781,791.44/217,373,169,497.22 = 86,231,411,815.44/x - Step 3: Cross multiply
157,516,781,791.44x = 217,373,169,497.22 × 86,231,411,815.44 - Step 4: Simplify right side
157,516,781,791.44x = 18,744,395,296,542,218,518,528 - Step 5: Solve for x
x = 18,744,395,296,542,218,518,528/157,516,781,791.44 - Step 6: Final answer
x = 118,999,354,121.90
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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.