Finding the Fourth Proportional to 5,377,153.14, 7,420,377.90 and 2,929,784.30
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Solution
The fourth proportional to 5,377,153.14, 7,420,377.90 and 2,929,784.30 is: 4,043,051.42
Step by Step Solution
- Step 1: Write the proportion equation
5,377,153.14 : 7,420,377.90 = 2,929,784.30 : x - Step 2: Convert to fraction form
5,377,153.14/7,420,377.90 = 2,929,784.30/x - Step 3: Cross multiply
5,377,153.14x = 7,420,377.90 × 2,929,784.30 - Step 4: Simplify right side
5,377,153.14x = 21,740,106,634,385.08 - Step 5: Solve for x
x = 21,740,106,634,385.08/5,377,153.14 - Step 6: Final answer
x = 4,043,051.42
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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.