Finding the Fourth Proportional to 13,474,026.70, 20,211,127.58 and 5,387,681.68
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Solution
The fourth proportional to 13,474,026.70, 20,211,127.58 and 5,387,681.68 is: 8,081,557.52
Step by Step Solution
- Step 1: Write the proportion equation
13,474,026.70 : 20,211,127.58 = 5,387,681.68 : x - Step 2: Convert to fraction form
13,474,026.70/20,211,127.58 = 5,387,681.68/x - Step 3: Cross multiply
13,474,026.70x = 20,211,127.58 × 5,387,681.68 - Step 4: Simplify right side
13,474,026.70x = 108,891,121,767,970.31 - Step 5: Solve for x
x = 108,891,121,767,970.31/13,474,026.70 - Step 6: Final answer
x = 8,081,557.52
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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.