Finding the Fourth Proportional to 20,713,107.12, 28,596,334.32 and 18,414,906
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Solution
The fourth proportional to 20,713,107.12, 28,596,334.32 and 18,414,906 is: 25,423,457.98
Step by Step Solution
- Step 1: Write the proportion equation
20,713,107.12 : 28,596,334.32 = 18,414,906 : x - Step 2: Convert to fraction form
20,713,107.12/28,596,334.32 = 18,414,906/x - Step 3: Cross multiply
20,713,107.12x = 28,596,334.32 × 18,414,906 - Step 4: Simplify right side
20,713,107.12x = 526,598,808,447,373.94 - Step 5: Solve for x
x = 526,598,808,447,373.94/20,713,107.12 - Step 6: Final answer
x = 25,423,457.98
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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.