Finding the Fourth Proportional to 118,937,143.37, 164,163,428.28 and 81,275,559.95
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Solution
The fourth proportional to 118,937,143.37, 164,163,428.28 and 81,275,559.95 is: 112,180,889.66
Step by Step Solution
- Step 1: Write the proportion equation
118,937,143.37 : 164,163,428.28 = 81,275,559.95 : x - Step 2: Convert to fraction form
118,937,143.37/164,163,428.28 = 81,275,559.95/x - Step 3: Cross multiply
118,937,143.37x = 164,163,428.28 × 81,275,559.95 - Step 4: Simplify right side
118,937,143.37x = 13,342,474,557,179,074 - Step 5: Solve for x
x = 13,342,474,557,179,074/118,937,143.37 - Step 6: Final answer
x = 112,180,889.66
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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.