Finding the Fourth Proportional to 7,043,272.20, 10,564,908.30 and 3,449,593.80
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Solution
The fourth proportional to 7,043,272.20, 10,564,908.30 and 3,449,593.80 is: 5,174,390.70
Step by Step Solution
- Step 1: Write the proportion equation
7,043,272.20 : 10,564,908.30 = 3,449,593.80 : x - Step 2: Convert to fraction form
7,043,272.20/10,564,908.30 = 3,449,593.80/x - Step 3: Cross multiply
7,043,272.20x = 10,564,908.30 × 3,449,593.80 - Step 4: Simplify right side
7,043,272.20x = 36,444,642,169,248.54 - Step 5: Solve for x
x = 36,444,642,169,248.54/7,043,272.20 - Step 6: Final answer
x = 5,174,390.70
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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.