Finding the Fourth Proportional to 22,409,808.20, 30,925,115.36 and 13,707,341.54
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Solution
The fourth proportional to 22,409,808.20, 30,925,115.36 and 13,707,341.54 is: 18,915,874.45
Step by Step Solution
- Step 1: Write the proportion equation
22,409,808.20 : 30,925,115.36 = 13,707,341.54 : x - Step 2: Convert to fraction form
22,409,808.20/30,925,115.36 = 13,707,341.54/x - Step 3: Cross multiply
22,409,808.20x = 30,925,115.36 × 13,707,341.54 - Step 4: Simplify right side
22,409,808.20x = 423,901,118,403,420 - Step 5: Solve for x
x = 423,901,118,403,420/22,409,808.20 - Step 6: Final answer
x = 18,915,874.45
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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.