Finding the Fourth Proportional to 20,242,881.20, 30,330,729.48 and 14,246,652.08
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Solution
The fourth proportional to 20,242,881.20, 30,330,729.48 and 14,246,652.08 is: 21,346,336.32
Step by Step Solution
- Step 1: Write the proportion equation
20,242,881.20 : 30,330,729.48 = 14,246,652.08 : x - Step 2: Convert to fraction form
20,242,881.20/30,330,729.48 = 14,246,652.08/x - Step 3: Cross multiply
20,242,881.20x = 30,330,729.48 × 14,246,652.08 - Step 4: Simplify right side
20,242,881.20x = 432,111,350,234,159.31 - Step 5: Solve for x
x = 432,111,350,234,159.31/20,242,881.20 - Step 6: Final answer
x = 21,346,336.32
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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.