Finding the Fourth Proportional to 126,176,412.10, 189,264,618.15 and 68,780,784.10
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Solution
The fourth proportional to 126,176,412.10, 189,264,618.15 and 68,780,784.10 is: 103,171,176.15
Step by Step Solution
- Step 1: Write the proportion equation
126,176,412.10 : 189,264,618.15 = 68,780,784.10 : x - Step 2: Convert to fraction form
126,176,412.10/189,264,618.15 = 68,780,784.10/x - Step 3: Cross multiply
126,176,412.10x = 189,264,618.15 × 68,780,784.10 - Step 4: Simplify right side
126,176,412.10x = 13,017,768,838,744,090 - Step 5: Solve for x
x = 13,017,768,838,744,090/126,176,412.10 - Step 6: Final answer
x = 103,171,176.15
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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.