Finding the Fourth Proportional to 39,168,056.80, 58,702,318.80 and 18,929,720.80
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Solution
The fourth proportional to 39,168,056.80, 58,702,318.80 and 18,929,720.80 is: 28,370,529.35
Step by Step Solution
- Step 1: Write the proportion equation
39,168,056.80 : 58,702,318.80 = 18,929,720.80 : x - Step 2: Convert to fraction form
39,168,056.80/58,702,318.80 = 18,929,720.80/x - Step 3: Cross multiply
39,168,056.80x = 58,702,318.80 × 18,929,720.80 - Step 4: Simplify right side
39,168,056.80x = 1,111,218,505,196,591 - Step 5: Solve for x
x = 1,111,218,505,196,591/39,168,056.80 - Step 6: Final answer
x = 28,370,529.35
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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.