Finding the Fourth Proportional to 13,037,621.76, 19,575,628.92 and 7,291,612.62
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Solution
The fourth proportional to 13,037,621.76, 19,575,628.92 and 7,291,612.62 is: 10,948,154.92
Step by Step Solution
- Step 1: Write the proportion equation
13,037,621.76 : 19,575,628.92 = 7,291,612.62 : x - Step 2: Convert to fraction form
13,037,621.76/19,575,628.92 = 7,291,612.62/x - Step 3: Cross multiply
13,037,621.76x = 19,575,628.92 × 7,291,612.62 - Step 4: Simplify right side
13,037,621.76x = 142,737,902,877,509 - Step 5: Solve for x
x = 142,737,902,877,509/13,037,621.76 - Step 6: Final answer
x = 10,948,154.92
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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.