Finding the Fourth Proportional to 115,590,393.74, 159,537,917.18 and 68,573,564.52
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Solution
The fourth proportional to 115,590,393.74, 159,537,917.18 and 68,573,564.52 is: 94,645,266.82
Step by Step Solution
- Step 1: Write the proportion equation
115,590,393.74 : 159,537,917.18 = 68,573,564.52 : x - Step 2: Convert to fraction form
115,590,393.74/159,537,917.18 = 68,573,564.52/x - Step 3: Cross multiply
115,590,393.74x = 159,537,917.18 × 68,573,564.52 - Step 4: Simplify right side
115,590,393.74x = 10,940,083,657,129,146 - Step 5: Solve for x
x = 10,940,083,657,129,146/115,590,393.74 - Step 6: Final answer
x = 94,645,266.82
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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.