Finding the Fourth Proportional to 12,787,560.71, 19,168,416.40 and 5,505,770.26
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Solution
The fourth proportional to 12,787,560.71, 19,168,416.40 and 5,505,770.26 is: 8,253,090.59
Step by Step Solution
- Step 1: Write the proportion equation
12,787,560.71 : 19,168,416.40 = 5,505,770.26 : x - Step 2: Convert to fraction form
12,787,560.71/19,168,416.40 = 5,505,770.26/x - Step 3: Cross multiply
12,787,560.71x = 19,168,416.40 × 5,505,770.26 - Step 4: Simplify right side
12,787,560.71x = 105,536,896,946,416.25 - Step 5: Solve for x
x = 105,536,896,946,416.25/12,787,560.71 - Step 6: Final answer
x = 8,253,090.59
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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.