Finding the Fourth Proportional to 20,713,156.36, 28,596,402 and 18,414,955.24
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Solution
The fourth proportional to 20,713,156.36, 28,596,402 and 18,414,955.24 is: 25,423,525.69
Step by Step Solution
- Step 1: Write the proportion equation
20,713,156.36 : 28,596,402 = 18,414,955.24 : x - Step 2: Convert to fraction form
20,713,156.36/28,596,402 = 18,414,955.24/x - Step 3: Cross multiply
20,713,156.36x = 28,596,402 × 18,414,955.24 - Step 4: Simplify right side
20,713,156.36x = 526,601,462,855,046.44 - Step 5: Solve for x
x = 526,601,462,855,046.44/20,713,156.36 - Step 6: Final answer
x = 25,423,525.69
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1.5x scale
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.