Finding the Fourth Proportional to 78,732,117.58, 118,098,176.37 and 73,351,277.45
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Solution
The fourth proportional to 78,732,117.58, 118,098,176.37 and 73,351,277.45 is: 110,026,916.18
Step by Step Solution
- Step 1: Write the proportion equation
78,732,117.58 : 118,098,176.37 = 73,351,277.45 : x - Step 2: Convert to fraction form
78,732,117.58/118,098,176.37 = 73,351,277.45/x - Step 3: Cross multiply
78,732,117.58x = 118,098,176.37 × 73,351,277.45 - Step 4: Simplify right side
78,732,117.58x = 8,662,652,100,888,147 - Step 5: Solve for x
x = 8,662,652,100,888,147/78,732,117.58 - Step 6: Final answer
x = 110,026,916.18
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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.