Finding the Fourth Proportional to 39,219,213.60, 58,809,924.48 and 13,659,657.12
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Solution
The fourth proportional to 39,219,213.60, 58,809,924.48 and 13,659,657.12 is: 20,482,904.42
Step by Step Solution
- Step 1: Write the proportion equation
39,219,213.60 : 58,809,924.48 = 13,659,657.12 : x - Step 2: Convert to fraction form
39,219,213.60/58,809,924.48 = 13,659,657.12/x - Step 3: Cross multiply
39,219,213.60x = 58,809,924.48 × 13,659,657.12 - Step 4: Simplify right side
39,219,213.60x = 803,323,403,649,894.25 - Step 5: Solve for x
x = 803,323,403,649,894.25/39,219,213.60 - Step 6: Final answer
x = 20,482,904.42
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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.