Finding the Fourth Proportional to 57,239,541.54, 78,983,390.79 and 38,695,032.18
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Solution
The fourth proportional to 57,239,541.54, 78,983,390.79 and 38,695,032.18 is: 53,394,292.93
Step by Step Solution
- Step 1: Write the proportion equation
57,239,541.54 : 78,983,390.79 = 38,695,032.18 : x - Step 2: Convert to fraction form
57,239,541.54/78,983,390.79 = 38,695,032.18/x - Step 3: Cross multiply
57,239,541.54x = 78,983,390.79 × 38,695,032.18 - Step 4: Simplify right side
57,239,541.54x = 3,056,264,848,304,566 - Step 5: Solve for x
x = 3,056,264,848,304,566/57,239,541.54 - Step 6: Final answer
x = 53,394,292.93
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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.