Finding the Fourth Proportional to 79,015,134.42, 119,114,936.28 and 73,747,963.62
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Solution
The fourth proportional to 79,015,134.42, 119,114,936.28 and 73,747,963.62 is: 111,174,701.55
Step by Step Solution
- Step 1: Write the proportion equation
79,015,134.42 : 119,114,936.28 = 73,747,963.62 : x - Step 2: Convert to fraction form
79,015,134.42/119,114,936.28 = 73,747,963.62/x - Step 3: Cross multiply
79,015,134.42x = 119,114,936.28 × 73,747,963.62 - Step 4: Simplify right side
79,015,134.42x = 8,784,483,987,376,059 - Step 5: Solve for x
x = 8,784,483,987,376,059/79,015,134.42 - Step 6: Final answer
x = 111,174,701.55
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.