Finding the Fourth Proportional to 98,354,113.68, 135,725,975.38 and 54,300,311.99
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Solution
The fourth proportional to 98,354,113.68, 135,725,975.38 and 54,300,311.99 is: 74,932,939.07
Step by Step Solution
- Step 1: Write the proportion equation
98,354,113.68 : 135,725,975.38 = 54,300,311.99 : x - Step 2: Convert to fraction form
98,354,113.68/135,725,975.38 = 54,300,311.99/x - Step 3: Cross multiply
98,354,113.68x = 135,725,975.38 × 54,300,311.99 - Step 4: Simplify right side
98,354,113.68x = 7,369,962,808,179,277 - Step 5: Solve for x
x = 7,369,962,808,179,277/98,354,113.68 - Step 6: Final answer
x = 74,932,939.07
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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.